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  • 3D steady-state diffusion-weighted imaging with trajectory ...

    Steady-state DWI with TURBINE uses slab-selection and a short echo-planar imaging (EPI) readout each pulse repetition time. Successive EPI readouts are rotated about the phase-encode axis. For image reconstruction, batches of cardiac-synchronized readouts are used to form three-dimensional navigators from a fully sampled central k-space cylinder.

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  • THREE-DIMENSIONAL FLOW FIELD AROUND A ROTATING

    Home Journals Journal of Flow Visualization and Image Processing Volume 25, 2018 Issue 1 THREE-DIMENSIONAL FLOW FIELD AROUND A ROTATING CYLINDER WITH SPIRAL FIN FOR MAGNUS WIND TURBINE

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  • Three-Dimensional Piston Ring–Cylinder Bore Contact ...

    2015-11-1u2002·u2002These factors are highly influenced by the power cylinder system design. In particular, the piston ring to cylinder bore contact force distribution around the circumference of the piston rings must be optimized under all running conditions. To accomplish this, the ring manufacturers make the ring curvature nonconstant along the circumference.

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  • A three-dimensional numerical study of the Magnus wind ...

    2012-12-11u2002·u2002Although the Magnus type wind turbine has many benefits over conventional blade-type wind turbines, it normally has low wind energy utilization efficiency. Therefore, it is important to seek effective ways of improving the Magnus wind turbine power performance in order to promote its application. As blade aspect ratio is a critical parameter influencing the Magnus wind turbine …

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  • Reconstruction of three-dimensional flow fields from two ...

    2020-4-15u2002·u2002The performance of the method is tested in the three-dimensional wake of a circular cylinder at Reynolds number (based on the cylinder diameter and the incoming free-stream velocity) equal to 280. The resulting flow is highly non-linear and quasi-periodic, with two fundamental temporal frequencies, associated with the well-known modes A and B.

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  • Experimental and Numerical Study of the Effect of ...

    2013-4-8u2002·u2002In a four cylinder four stroke engine, the pulse frequency varies between 20 and 200 Hz. Three dimensional pulsating flows in a vane-less turbocharger turbine of a 1.7 liters SI engine are simulated numerically and validated experimentally. Simulations are done for 720 degree engine cycle at three engine speeds.

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  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

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  • Three-dimensional wake dynamics of a blunt and divergent ...

    2007-12-2u2002·u2002The wake dynamics of an airfoil with a blunt and divergent trailing edge is investigated experimentally at relatively high Reynolds. The near wake topology is examined versus different levels of free stream turbulence FST and angles of attack, while the downstream wake evolution is characterized at various levels of FST. The FST is found to have a significant effect on the …

    Get Price
  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

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  • Dimensional accuracy and surface characteristics of 3D ...

    Three-dimensional deviation at each cylinder location was lowest in the left canine region, and deviations increased with distance from this site in all groups. The qualitative features of casts varied among 3D printers in terms of shape, surface smoothness, and edge sharpness.

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  • Three-Dimensional Analysis of Tribological Performance

    A three-dimensional, hydrodynamic mixed lubrication model has been developed to investigate the frictional performance of piston ring and cylinder liner contact. The model is based on the average Reynolds equation and asperity contact approach with the considerations of surface roughness, rupture location, blowby through the piston ring pack ...

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  • Flow Past a Forced Oscillating Cylinder: A Three ...

    2019-11-11u2002·u2002In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary cylinder.

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  • Two- and Three-Dimensional Simulations of the Flow

    2013-8-23u2002·u2002Two- and three-dimensional simulations of the flow around straked cylinders are presented. For the two-dimensional simulations we used the Spectral/hp Element Method, and carried out simulations for five different angles of rotation of the cylinder with respect to the free stream. Fixed and elastically-mounted cylinders were tested, and the Reynolds number was …

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  • Three Dimensional Numerical Simulation of the Natural ...

    On the other hand, the flow and heat transfer shows three dimensional characteristics while for Rayleigh numbers greater than 5×10 5. Comparison with experimental results indicated that the numerical solutions by three dimensional model can obtain more accuracy than the numerical solutions by two dimensional model.

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  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

    Get Price
  • Three-dimensional wake dynamics of a blunt and

    2007-12-2u2002·u2002The wake dynamics of an airfoil with a blunt and divergent trailing edge is investigated experimentally at relatively high Reynolds. The near wake topology is examined versus different levels of free stream turbulence FST and angles of attack, while the downstream wake evolution is characterized at various levels of FST. The FST is found to have a significant effect on the …

    Get Price
  • 3D CFD Simulation of Vortex-induced Vibration of Cylinder

    Cylinder free to vibrate in transverse direction where m d = LD 2 /4, is the density of the fluid, and L is the length of the cylinder. Our results were compared with the experimental results of ...

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  • Numerical simulation of flow past rectangular cylinders ...

    2012-4-11u2002·u2002This paper presents a numerical study of a uniform flow past a rectangular cylinder using the incompressible lattice Boltzmann method (ILBM). Firstly, we use the ILBM to simulate the flow past a square cylinder symmetrically placed in a two-dimensional channel and results are validated against the well-resolved results obtained using finite-difference method and finite …

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  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

    Get Price
  • 3D steady-state diffusion-weighted imaging with trajectory ...

    Steady-state DWI with TURBINE uses slab-selection and a short echo-planar imaging (EPI) readout each pulse repetition time. Successive EPI readouts are rotated about the phase-encode axis. For image reconstruction, batches of cardiac-synchronized readouts are used to form three-dimensional navigators from a fully sampled central k-space cylinder.

    Get Price
  • Pose determination of a cylindrical (dental) implant in ...

    The loss of depth owing to the two-dimensional (2D) reproduction of a three-dimensional (3D) scene is a major limitation in projection radiography. In general, no depth information can be gained from a single-view 2D radiograph, because many points along each X-ray are mapped on to only one point in the image plane (many-to-one-mapping).

    Get Price
  • Detection of Three-Dimensional Parameter of Defects for ...

    2019-11-11u2002·u2002Gas turbine is one of the most efficient heat-to-power conversion machine and widely used in power plant, large vessel, etc. As the core parts responsible for the energy conversion in gas turbine, turbine blades are typically manufactured using the investment casting process and bear quite heavy loads in harsh environment [].Hence, in the manufacturing and service processes of gas turbine …

    Get Price
  • Flow Past a Forced Oscillating Cylinder: A Three ...

    2019-11-11u2002·u2002In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary cylinder.

    Get Price
  • THREE DIMENSIONAL HEAT TRANSFER CHARACTERISTICS

    2014-6-16u2002·u2002dimensional study cannot simulate the real heat transfer mechanism in a gas tur bine blade where three-dimension al flow is develop ed in turbine blade passages due leading edge horseshoe vortices. Langston et al. [12], Sieverding [13] and Wang et al. [14] prov ided

    Get Price
  • 'Numerical simulation of three dimensional vortex ...

    The objective of the present work was to investigate three dimensional unsteady vortex dominated flows using the spectral difference (SD) method and finite volume (FV) method. The simulations were carried out over a circular cylinder, a delta wing and a spiral-shaped wind turbine. SD method was used to demonstrate its potential in Large Eddy Simulation (LES) of flow over a cylinder and …

    Get Price
  • INVESTIGATION OF THREE DIMENSIONAL WAKE

    2006-10-19u2002·u2002popularity in the design of horizontal axis wind turbines (HAWT). To characterise the performance of airfoils, non-dimensional numbers are used such as the drag coefficient and the Reynolds number: 1 2 2 D p D C ρVA = Eq 1. Re Vc ν = Eq 2. One feature of airfoil shapes during and post stall is that they exhibit three-dimensional flow in their ...

    Get Price
  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

    Get Price
  • Numerical investigation of flow motion and performance of ...

    2015-4-11u2002·u2002Horizontal axis tidal turbines have attracted more and more attentions nowadays, because of their convenience and low expense in construction and high efficiency in extracting tidal energy. The present study numerically investigates the flow motion and performance of a horizontal axis tidal turbine with a supporting vertical cylinder under steady current. In the numerical model, …

    Get Price
  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

    Get Price
  • 3D steady-state diffusion-weighted imaging with

    Steady-state DWI with TURBINE uses slab-selection and a short echo-planar imaging (EPI) readout each pulse repetition time. Successive EPI readouts are rotated about the phase-encode axis. For image reconstruction, batches of cardiac-synchronized readouts are used to form three-dimensional navigators from a fully sampled central k-space cylinder.

    Get Price
  • Pose determination of a cylindrical (dental) implant in ...

    The loss of depth owing to the two-dimensional (2D) reproduction of a three-dimensional (3D) scene is a major limitation in projection radiography. In general, no depth information can be gained from a single-view 2D radiograph, because many points along each X-ray are mapped on to only one point in the image plane (many-to-one-mapping).

    Get Price
  • Detection of Three-Dimensional Parameter of Defects for ...

    2019-11-11u2002·u2002Gas turbine is one of the most efficient heat-to-power conversion machine and widely used in power plant, large vessel, etc. As the core parts responsible for the energy conversion in gas turbine, turbine blades are typically manufactured using the investment casting process and bear quite heavy loads in harsh environment [].Hence, in the manufacturing and service processes of gas turbine ...

    Get Price
  • Flow Past a Forced Oscillating Cylinder: A Three ...

    2019-11-11u2002·u2002In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary cylinder.

    Get Price
  • THREE DIMENSIONAL HEAT TRANSFER

    2014-6-16u2002·u2002dimensional study cannot simulate the real heat transfer mechanism in a gas tur bine blade where three-dimension al flow is develop ed in turbine blade passages due leading edge horseshoe vortices. Langston et al. [12], Sieverding [13] and Wang et al. [14] prov ided

    Get Price
  • 'Numerical simulation of three dimensional vortex ...

    The objective of the present work was to investigate three dimensional unsteady vortex dominated flows using the spectral difference (SD) method and finite volume (FV) method. The simulations were carried out over a circular cylinder, a delta wing and a spiral-shaped wind turbine. SD method was used to demonstrate its potential in Large Eddy Simulation (LES) of flow over a cylinder and also to ...

    Get Price
  • INVESTIGATION OF THREE DIMENSIONAL WAKE

    2006-10-19u2002·u2002popularity in the design of horizontal axis wind turbines (HAWT). To characterise the performance of airfoils, non-dimensional numbers are used such as the drag coefficient and the Reynolds number: 1 2 2 D p D C ρVA = Eq 1. Re Vc ν = Eq 2. One feature of airfoil shapes during and post stall is that they exhibit three-dimensional flow in their ...

    Get Price
  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

    Get Price
  • Numerical investigation of flow motion and performance

    2015-4-11u2002·u2002Horizontal axis tidal turbines have attracted more and more attentions nowadays, because of their convenience and low expense in construction and high efficiency in extracting tidal energy. The present study numerically investigates the flow motion and performance of a horizontal axis tidal turbine with a supporting vertical cylinder under steady current. In the numerical model, the continuous ...

    Get Price
  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

    Get Price
  • 3D steady-state diffusion-weighted imaging with

    Steady-state DWI with TURBINE uses slab-selection and a short echo-planar imaging (EPI) readout each pulse repetition time. Successive EPI readouts are rotated about the phase-encode axis. For image reconstruction, batches of cardiac-synchronized readouts are used to form three-dimensional navigators from a fully sampled central k-space cylinder.

    Get Price
  • Pose determination of a cylindrical (dental) implant in ...

    The loss of depth owing to the two-dimensional (2D) reproduction of a three-dimensional (3D) scene is a major limitation in projection radiography. In general, no depth information can be gained from a single-view 2D radiograph, because many points along each X-ray are mapped on to only one point in the image plane (many-to-one-mapping).

    Get Price
  • Detection of Three-Dimensional Parameter of Defects for ...

    2019-11-11u2002·u2002Gas turbine is one of the most efficient heat-to-power conversion machine and widely used in power plant, large vessel, etc. As the core parts responsible for the energy conversion in gas turbine, turbine blades are typically manufactured using the investment casting process and bear quite heavy loads in harsh environment [].Hence, in the manufacturing and service processes of gas turbine ...

    Get Price
  • Flow Past a Forced Oscillating Cylinder: A Three ...

    2019-11-11u2002·u2002In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary cylinder.

    Get Price
  • THREE DIMENSIONAL HEAT TRANSFER

    2014-6-16u2002·u2002dimensional study cannot simulate the real heat transfer mechanism in a gas tur bine blade where three-dimension al flow is develop ed in turbine blade passages due leading edge horseshoe vortices. Langston et al. [12], Sieverding [13] and Wang et al. [14] prov ided

    Get Price
  • 'Numerical simulation of three dimensional vortex ...

    The objective of the present work was to investigate three dimensional unsteady vortex dominated flows using the spectral difference (SD) method and finite volume (FV) method. The simulations were carried out over a circular cylinder, a delta wing and a spiral-shaped wind turbine. SD method was used to demonstrate its potential in Large Eddy Simulation (LES) of flow over a cylinder …

    Get Price
  • INVESTIGATION OF THREE DIMENSIONAL WAKE

    2006-10-19u2002·u2002popularity in the design of horizontal axis wind turbines (HAWT). To characterise the performance of airfoils, non-dimensional numbers are used such as the drag coefficient and the Reynolds number: 1 2 2 D p D C ρVA = Eq 1. Re Vc ν = Eq 2. One feature of airfoil shapes during and post stall is that they exhibit three-dimensional flow in their ...

    Get Price
  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

    Get Price
  • Numerical investigation of flow motion and performance

    2015-4-11u2002·u2002Horizontal axis tidal turbines have attracted more and more attentions nowadays, because of their convenience and low expense in construction and high efficiency in extracting tidal energy. The present study numerically investigates the flow motion and performance of a horizontal axis tidal turbine with a supporting vertical cylinder under steady current. In the …

    Get Price
  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

    Get Price
  • 3D steady-state diffusion-weighted imaging with

    Steady-state DWI with TURBINE uses slab-selection and a short echo-planar imaging (EPI) readout each pulse repetition time. Successive EPI readouts are rotated about the phase-encode axis. For image reconstruction, batches of cardiac-synchronized readouts are used to form three-dimensional navigators from a fully sampled central k-space cylinder.

    Get Price
  • Pose determination of a cylindrical (dental) implant in ...

    The loss of depth owing to the two-dimensional (2D) reproduction of a three-dimensional (3D) scene is a major limitation in projection radiography. In general, no depth information can be gained from a single-view 2D radiograph, because many points along each X-ray are mapped on to only one point in the image plane (many-to-one-mapping).

    Get Price
  • Detection of Three-Dimensional Parameter of Defects for ...

    2019-11-11u2002·u2002Gas turbine is one of the most efficient heat-to-power conversion machine and widely used in power plant, large vessel, etc. As the core parts responsible for the energy conversion in gas turbine, turbine blades are typically manufactured using the investment casting process and bear quite heavy loads in harsh environment [].Hence, in the manufacturing and service processes of gas turbine ...

    Get Price
  • Flow Past a Forced Oscillating Cylinder: A Three ...

    2019-11-11u2002·u2002In this paper, we conducted a three-dimensional investigation of flow past a cylinder undergoing forced oscillation. The flow configuration is similar to the work of Blackburn & Henderson (1999) [1], in which Reynolds number equals to 500 and a fixed motion amplitude of A/D = 0.25. The oscillation frequencies are varied in the range near to the natural shedding frequency of a stationary …

    Get Price
  • THREE DIMENSIONAL HEAT TRANSFER

    2014-6-16u2002·u2002dimensional study cannot simulate the real heat transfer mechanism in a gas tur bine blade where three-dimension al flow is develop ed in turbine blade passages due leading edge horseshoe vortices. Langston et al. [12], Sieverding [13] and Wang et al. [14] prov ided

    Get Price
  • 'Numerical simulation of three dimensional vortex ...

    The objective of the present work was to investigate three dimensional unsteady vortex dominated flows using the spectral difference (SD) method and finite volume (FV) method. The simulations were carried out over a circular cylinder, a delta wing and a spiral-shaped wind turbine. SD method was used to demonstrate its potential in Large Eddy Simulation (LES) of flow over a cylinder and also to ...

    Get Price
  • INVESTIGATION OF THREE DIMENSIONAL WAKE

    2006-10-19u2002·u2002popularity in the design of horizontal axis wind turbines (HAWT). To characterise the performance of airfoils, non-dimensional numbers are used such as the drag coefficient and the Reynolds number: 1 2 2 D p D C ρVA = Eq 1. Re Vc ν = Eq 2. One feature of airfoil shapes during and post stall is that they exhibit three-dimensional flow in their ...

    Get Price
  • High quality three-dimensional (3D) shape measurement ...

    2020-10-13u2002·u2002High quality three-dimensional (3D) shape measurement using intensity-optimized dithering technique by Beiwen Li A thesis submitted to the graduate faculty in partial ful llment of the requirements for the degree of MASTER OF SCIENCE Major: Mechanical Engineering Program of Study Committee: Song Zhang, Major Professor James H Oliver Yan-Bin Jia

    Get Price
  • Numerical investigation of flow motion and performance

    2015-4-11u2002·u2002Horizontal axis tidal turbines have attracted more and more attentions nowadays, because of their convenience and low expense in construction and high efficiency in extracting tidal energy. The present study numerically investigates the flow motion and performance of a horizontal axis tidal turbine with a supporting vertical cylinder under steady current. In the numerical model, the continuous ...

    Get Price
  • Appendix B: Problems - Wiley

    2017-8-23u2002·u2002cylinder. (c) Find the lift force produced by the cylinder in the inventor's device in a 10m/s wind. 3.3 The operating conditions found at two different points of a blade on a wind turbine are shown in Table B.2. These conditions were determined at 0 C (32 F), for which the kinematic viscosity is 1.33 10 5m2/s. What are the Reynolds numbers ...

    Get Price