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  • From teeth to walls

    2021-9-10u2002·u2002Dentists have a long history of public service and enjoy working with their hands. Much of dentistry involves the same three-dimensional problem solving skills …

    Get Price
  • The Performance of a 1.5 stage Axial Turbine with a Non ...

    2017-12-1u2002·u2002In this paper, three-dimensional steady RANS k-ω SST and RNG k-ε models of a 1.5 stage axial turbine with axisymmetric walls are validated against experimental measurements from the Institute of Jet Propulsion and Turbomachinery at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Germany, using the OpenFOAM 3.2-extend ...

    Get Price
  • Experimental and numerical investigation of a three ...

    2015-4-1u2002·u2002A 3-D overview of the wind turbine with a variable-pitch angle mechanism is depicted in Fig. 1.The turbine had a diameter of 0.8 m and a height (blade span) of 0.8 m.The turbine had three straight blades each was connected to the rotor's center by three main circular rods with a diameter of 0.02 m each.The pitch of the three straight-blade rotor varies by means of a four-bar linkage ...

    Get Price
  • Three-dimensional numerical simulations of straight

    2015-11-1u2002·u2002Three straight-bladed vertical axis turbine designs were simulated, labelled turbines A, B and C, with the overall geometrical dimensions and configurations as outlined in Table 1, which were based on the EFD turbines of Rawlings . These turbines were simulated as they allowed for comparisons of power output for varying geometrical designs as ...

    Get Price
  • Optimum Design of the Dental Air-Turbine Handpiece

    2020-1-22u2002·u2002An air-turbine and associated air supply tube was optimized as a dental air-turbine handpiece system. The system consists of an air-turbine with an impeller and a housing, and an air supply tube which supplies compressed-air to the air-turbine. The flow characteristics of the dental air-turbine handpiece system were investigated using ANSYS CFX. The study aimed to find the significant design ...

    Get Price
  • Experimental and numerical investigation of a three ...

    Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch M. Elkhourya,n, T. Kiwatab, E. Aouna a Mechanical Engineering, Lebanese American ...

    Get Price
  • Three-dimensional flow field around and downstream of a ...

    2016-2-17u2002·u2002Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine …

    Get Price
  • 3D printed wind turbines part 1: Design considerations and ...

    2015-9-1u2002·u2002Turbine components were printed at half scale and prototype was easily produced in PLA in approximately six hours of print time with an infill of 20%. The turbine was assembled for 0.25 m radius and 0.5 m blade length. The complete assembled turbine is depicted in Fig. 7. HMA was used to adhere the frame tubing to the printed components.

    Get Price
  • Winglet design for vertical axis wind turbines based on a ...

    2019-9-1u2002·u2002The NACA 0015 is commonly used as the airfoil for VAWT's blade in the experimental investigations .It is a symmetric airfoil with a good power coefficient performance .Li et al. performed many wind tunnel experiments including using this airfoil and the results are available in the open literature. Based on the work of Li, this paper investigates three-dimensional numerical simulations on …

    Get Price
  • REMAINING LIFE ASSESSMENT OF A HIGH PRESSURE

    2014-7-1u2002·u2002Outlet steam pressure of HP turbine, for design flow, Mpa 2.78 Outlet steam temperature of HP turbine, °C 333 Relevant casing wall thickness, mm 90 After 150000 service hours, non-destructive testing detected cracks at the HP casing entrance and due to this, it was necessary to perform the assessment of its remaining

    Get Price
  • From teeth to walls

    2021-9-10u2002·u2002Dentists have a long history of public service and enjoy working with their hands. Much of dentistry involves the same three-dimensional problem solving skills …

    Get Price
  • The Performance of a 1.5 stage Axial Turbine with a Non ...

    2017-12-1u2002·u2002In this paper, three-dimensional steady RANS k-ω SST and RNG k-ε models of a 1.5 stage axial turbine with axisymmetric walls are validated against experimental measurements from the Institute of Jet Propulsion and Turbomachinery at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Germany, using the OpenFOAM 3.2-extend ...

    Get Price
  • Experimental and numerical investigation of a three ...

    2015-4-1u2002·u2002A 3-D overview of the wind turbine with a variable-pitch angle mechanism is depicted in Fig. 1.The turbine had a diameter of 0.8 m and a height (blade span) of 0.8 m.The turbine had three straight blades each was connected to the rotor's center by three main circular rods with a diameter of 0.02 m each.The pitch of the three straight-blade rotor varies by means of a four-bar linkage ...

    Get Price
  • Three-dimensional numerical simulations of straight

    2015-11-1u2002·u2002Three straight-bladed vertical axis turbine designs were simulated, labelled turbines A, B and C, with the overall geometrical dimensions and configurations as outlined in Table 1, which were based on the EFD turbines of Rawlings . These turbines were simulated as they allowed for comparisons of power output for varying geometrical designs as ...

    Get Price
  • Optimum Design of the Dental Air-Turbine Handpiece

    2020-1-22u2002·u2002An air-turbine and associated air supply tube was optimized as a dental air-turbine handpiece system. The system consists of an air-turbine with an impeller and a housing, and an air supply tube which supplies compressed-air to the air-turbine. The flow characteristics of the dental air-turbine handpiece system were investigated using ANSYS CFX. The study aimed to find the significant design ...

    Get Price
  • Experimental and numerical investigation of a three ...

    Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch M. Elkhourya,n, T. Kiwatab, E. Aouna a Mechanical Engineering, Lebanese American ...

    Get Price
  • Three-dimensional flow field around and downstream of a ...

    2016-2-17u2002·u2002Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine …

    Get Price
  • 3D printed wind turbines part 1: Design considerations and ...

    2015-9-1u2002·u2002Turbine components were printed at half scale and prototype was easily produced in PLA in approximately six hours of print time with an infill of 20%. The turbine was assembled for 0.25 m radius and 0.5 m blade length. The complete assembled turbine is depicted in Fig. 7. HMA was used to adhere the frame tubing to the printed components.

    Get Price
  • Winglet design for vertical axis wind turbines based on a ...

    2019-9-1u2002·u2002The NACA 0015 is commonly used as the airfoil for VAWT's blade in the experimental investigations .It is a symmetric airfoil with a good power coefficient performance .Li et al. performed many wind tunnel experiments including using this airfoil and the results are available in the open literature. Based on the work of Li, this paper investigates three-dimensional numerical simulations on …

    Get Price
  • REMAINING LIFE ASSESSMENT OF A HIGH PRESSURE

    2014-7-1u2002·u2002Outlet steam pressure of HP turbine, for design flow, Mpa 2.78 Outlet steam temperature of HP turbine, °C 333 Relevant casing wall thickness, mm 90 After 150000 service hours, non-destructive testing detected cracks at the HP casing entrance and due to this, it was necessary to perform the assessment of its remaining

    Get Price
  • From teeth to walls

    2021-9-10u2002·u2002Dentists have a long history of public service and enjoy working with their hands. Much of dentistry involves the same three-dimensional problem solving skills …

    Get Price
  • The Performance of a 1.5 stage Axial Turbine with a Non ...

    2017-12-1u2002·u2002In this paper, three-dimensional steady RANS k-ω SST and RNG k-ε models of a 1.5 stage axial turbine with axisymmetric walls are validated against experimental measurements from the Institute of Jet Propulsion and Turbomachinery at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Germany, using the OpenFOAM 3.2-extend ...

    Get Price
  • Experimental and numerical investigation of a three ...

    2015-4-1u2002·u2002A 3-D overview of the wind turbine with a variable-pitch angle mechanism is depicted in Fig. 1.The turbine had a diameter of 0.8 m and a height (blade span) of 0.8 m.The turbine had three straight blades each was connected to the rotor's center by three main circular rods with a diameter of 0.02 m each.The pitch of the three straight-blade rotor varies by means of a four-bar linkage ...

    Get Price
  • Three-dimensional numerical simulations of straight

    2015-11-1u2002·u2002Three straight-bladed vertical axis turbine designs were simulated, labelled turbines A, B and C, with the overall geometrical dimensions and configurations as outlined in Table 1, which were based on the EFD turbines of Rawlings . These turbines were simulated as they allowed for comparisons of power output for varying geometrical designs as ...

    Get Price
  • Optimum Design of the Dental Air-Turbine Handpiece

    2020-1-22u2002·u2002An air-turbine and associated air supply tube was optimized as a dental air-turbine handpiece system. The system consists of an air-turbine with an impeller and a housing, and an air supply tube which supplies compressed-air to the air-turbine. The flow characteristics of the dental air-turbine handpiece system were investigated using ANSYS CFX. The study aimed to find the significant design ...

    Get Price
  • Experimental and numerical investigation of a three ...

    Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch M. Elkhourya,n, T. Kiwatab, E. Aouna a Mechanical Engineering, Lebanese American ...

    Get Price
  • Three-dimensional flow field around and downstream of a ...

    2016-2-17u2002·u2002Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine …

    Get Price
  • 3D printed wind turbines part 1: Design considerations and ...

    2015-9-1u2002·u2002Turbine components were printed at half scale and prototype was easily produced in PLA in approximately six hours of print time with an infill of 20%. The turbine was assembled for 0.25 m radius and 0.5 m blade length. The complete assembled turbine is depicted in Fig. 7. HMA was used to adhere the frame tubing to the printed components.

    Get Price
  • Winglet design for vertical axis wind turbines based on a ...

    2019-9-1u2002·u2002The NACA 0015 is commonly used as the airfoil for VAWT's blade in the experimental investigations .It is a symmetric airfoil with a good power coefficient performance .Li et al. performed many wind tunnel experiments including using this airfoil and the results are available in the open literature. Based on the work of Li, this paper investigates three-dimensional numerical simulations on …

    Get Price
  • REMAINING LIFE ASSESSMENT OF A HIGH PRESSURE

    2014-7-1u2002·u2002Outlet steam pressure of HP turbine, for design flow, Mpa 2.78 Outlet steam temperature of HP turbine, °C 333 Relevant casing wall thickness, mm 90 After 150000 service hours, non-destructive testing detected cracks at the HP casing entrance and due to this, it was necessary to perform the assessment of its remaining

    Get Price
  • From teeth to walls

    2021-9-10u2002·u2002Dentists have a long history of public service and enjoy working with their hands. Much of dentistry involves the same three-dimensional problem solving skills …

    Get Price
  • The Performance of a 1.5 stage Axial Turbine with a Non ...

    2017-12-1u2002·u2002In this paper, three-dimensional steady RANS k-ω SST and RNG k-ε models of a 1.5 stage axial turbine with axisymmetric walls are validated against experimental measurements from the Institute of Jet Propulsion and Turbomachinery at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Germany, using the OpenFOAM 3.2-extend ...

    Get Price
  • Experimental and numerical investigation of a three ...

    2015-4-1u2002·u2002A 3-D overview of the wind turbine with a variable-pitch angle mechanism is depicted in Fig. 1.The turbine had a diameter of 0.8 m and a height (blade span) of 0.8 m.The turbine had three straight blades each was connected to the rotor's center by three main circular rods with a diameter of 0.02 m each.The pitch of the three straight-blade rotor varies by means of a four-bar linkage ...

    Get Price
  • Three-dimensional numerical simulations of straight

    2015-11-1u2002·u2002Three straight-bladed vertical axis turbine designs were simulated, labelled turbines A, B and C, with the overall geometrical dimensions and configurations as outlined in Table 1, which were based on the EFD turbines of Rawlings . These turbines were simulated as they allowed for comparisons of power output for varying geometrical designs as ...

    Get Price
  • Optimum Design of the Dental Air-Turbine Handpiece

    2020-1-22u2002·u2002An air-turbine and associated air supply tube was optimized as a dental air-turbine handpiece system. The system consists of an air-turbine with an impeller and a housing, and an air supply tube which supplies compressed-air to the air-turbine. The flow characteristics of the dental air-turbine handpiece system were investigated using ANSYS CFX. The study aimed to find the significant design ...

    Get Price
  • Experimental and numerical investigation of a three ...

    Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch M. Elkhourya,n, T. Kiwatab, E. Aouna a Mechanical Engineering, Lebanese American ...

    Get Price
  • Three-dimensional flow field around and downstream of a ...

    2016-2-17u2002·u2002Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine …

    Get Price
  • 3D printed wind turbines part 1: Design considerations and ...

    2015-9-1u2002·u2002Turbine components were printed at half scale and prototype was easily produced in PLA in approximately six hours of print time with an infill of 20%. The turbine was assembled for 0.25 m radius and 0.5 m blade length. The complete assembled turbine is depicted in Fig. 7. HMA was used to adhere the frame tubing to the printed components.

    Get Price
  • Winglet design for vertical axis wind turbines based on a ...

    2019-9-1u2002·u2002The NACA 0015 is commonly used as the airfoil for VAWT's blade in the experimental investigations .It is a symmetric airfoil with a good power coefficient performance .Li et al. performed many wind tunnel experiments including using this airfoil and the results are available in the open literature. Based on the work of Li, this paper investigates three-dimensional numerical simulations on …

    Get Price
  • REMAINING LIFE ASSESSMENT OF A HIGH PRESSURE

    2014-7-1u2002·u2002Outlet steam pressure of HP turbine, for design flow, Mpa 2.78 Outlet steam temperature of HP turbine, °C 333 Relevant casing wall thickness, mm 90 After 150000 service hours, non-destructive testing detected cracks at the HP casing entrance and due to this, it was necessary to perform the assessment of its remaining

    Get Price
  • Dental X-Ray Equipment - Digital Dental X-Ray Machines

    For those with limited square footage, for example, a wall-mounted dental X-ray machine can save space. Smaller digital X-ray sensors are useful for working with pediatric patients. For more complex procedures, such as extractions or root canals, a cone beam X-ray machine provides a three-dimensional image that allows for better treatment planning.

    Get Price
  • S001 & SF 811 - Bien-Air Medical Technologies

    The foot pedal also controls the operation of the TDS 890 turbine spray. A unique dust shield contributes to its long service life. Simple and efficient controls, fitted with the TD 783 straight turbine. A choice of two versions, the S001 table model, stable yet compact, or the SF 811 wall or table-leg mounted unit, for extra working space.

    Get Price
  • Aerospace

    When inspecting complex turbine components, most demands can be met using computed tomography (CT) X-ray technology. It is important to examine several aspects of the blade to ensure quality and performance. Turbine manufacturers are typically concerned with the wall thickness, erosion and wear of the blade.

    Get Price
  • Passive acoustic methods for tracking the 3D movements of ...

    2020-5-29u2002·u2002A wide range of anthropogenic structures exist in the marine environment with the extent of these set to increase as the global offshore renewable energy industry grows. Many of these pose acute risks to marine wildlife; for example, tidal energy generators have the potential to injure or kill seals and small cetaceans through collisions with moving turbine parts. Information …

    Get Price
  • Fast Start-up of a Combined-Cycle Power Plant: A ...

    2021-9-10u2002·u2002three parts for convenience), and ST unit via thermo-hydraulic connectors. Sensor and actuator signals are collected from/to each unit by means of expandable connectors. Fig. 2: The steam turbine unit model. It is well-known that the HRSG start-up (several hours) is much slower than the GT start-up time (around 20 minutes).

    Get Price
  • Pelton Wheel Turbine: Parts, Working, Advantages, Formulas ...

    The Pelton wheel turbine is a tangential flow impulse turbine used for high heads of water and It is invented by Lester Allan Pelton, an American Engineer.. The energy available at the inlet of the turbine is only kinetic energy. The pressure energy at the inlet and outlet of the turbine …

    Get Price
  • Vertical axis wind turbine technology continues to improve

    2017-8-7u2002·u20021.2 Solving the three problems. The SAWT, a vertical axis design, solves the three technical problems in the vertical axis wind turbine industry. One designer has produced a small vertical wind turbine that sold over 4,000 units in around 60 countries since 2007, and used patents to set up technical barriers.

    Get Price
  • How Dimensional Innovations 3D printed the 93-ft-tall ...

    2020-9-22u2002·u2002Dimensional Innovations has today announced that it is indeed behind the massive structure, which in its finished form measures 93 feet in height. The Al Davis Memorial Torch stands over nine-stories tall and is now awaiting the official designation of …

    Get Price
  • MSN

    Your customizable and curated collection of the best in trusted news plus coverage of sports, entertainment, money, weather, travel, health and lifestyle, combined with …

    Get Price
  • Three.js – JavaScript 3D Library

    2021-9-30u2002·u2002Three.js – JavaScript 3D Library ... submit project

    Get Price
  • From teeth to walls

    2021-9-10u2002·u2002Dentists have a long history of public service and enjoy working with their hands. Much of dentistry involves the same three-dimensional problem solving skills …

    Get Price
  • The Performance of a 1.5 stage Axial Turbine with a Non ...

    2017-12-1u2002·u2002In this paper, three-dimensional steady RANS k-ω SST and RNG k-ε models of a 1.5 stage axial turbine with axisymmetric walls are validated against experimental measurements from the Institute of Jet Propulsion and Turbomachinery at the Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, Germany, using the OpenFOAM 3.2-extend ...

    Get Price
  • Experimental and numerical investigation of a three ...

    2015-4-1u2002·u2002A 3-D overview of the wind turbine with a variable-pitch angle mechanism is depicted in Fig. 1.The turbine had a diameter of 0.8 m and a height (blade span) of 0.8 m.The turbine had three straight blades each was connected to the rotor's center by three main circular rods with a diameter of 0.02 m each.The pitch of the three straight-blade rotor varies by means of a four-bar linkage ...

    Get Price
  • Three-dimensional numerical simulations of straight-bladed ...

    2015-11-1u2002·u2002Three straight-bladed vertical axis turbine designs were simulated, labelled turbines A, B and C, with the overall geometrical dimensions and configurations as outlined in Table 1, which were based on the EFD turbines of Rawlings . These turbines were simulated as they allowed for comparisons of power output for varying geometrical designs as ...

    Get Price
  • Optimum Design of the Dental Air-Turbine Handpiece System ...

    2020-1-22u2002·u2002An air-turbine and associated air supply tube was optimized as a dental air-turbine handpiece system. The system consists of an air-turbine with an impeller and a housing, and an air supply tube which supplies compressed-air to the air-turbine. The flow characteristics of the dental air-turbine handpiece system were investigated using ANSYS CFX. The study aimed to find the …

    Get Price
  • Experimental and numerical investigation of a three ...

    Experimental and numerical investigation of a three-dimensional vertical-axis wind turbine with variable-pitch M. Elkhourya,n, T. Kiwatab, E. Aouna a Mechanical Engineering, Lebanese American ...

    Get Price
  • Three-dimensional flow field around and downstream of a ...

    2016-2-17u2002·u2002Three-dimensional, three-component mean velocity fields have been measured around and downstream of a scale model vertical axis wind turbine (VAWT) operated at tip speed ratios (TSRs) of 1.25 and 2.5, in addition to a non-rotating case. The five-bladed turbine model has an aspect ratio (height/diameter) of 1 and is operated in a water tunnel at a Reynolds number based on turbine …

    Get Price
  • 3D printed wind turbines part 1: Design considerations and ...

    2015-9-1u2002·u2002Turbine components were printed at half scale and prototype was easily produced in PLA in approximately six hours of print time with an infill of 20%. The turbine was assembled for 0.25 m radius and 0.5 m blade length. The complete assembled turbine is depicted in Fig. 7. HMA was used to adhere the frame tubing to the printed components.

    Get Price
  • Winglet design for vertical axis wind turbines based on a ...

    2019-9-1u2002·u2002The NACA 0015 is commonly used as the airfoil for VAWT's blade in the experimental investigations .It is a symmetric airfoil with a good power coefficient performance .Li et al. performed many wind tunnel experiments including using this airfoil and the results are available in the open literature. Based on the work of Li, this paper investigates three-dimensional numerical …

    Get Price
  • REMAINING LIFE ASSESSMENT OF A HIGH PRESSURE

    2014-7-1u2002·u2002Outlet steam pressure of HP turbine, for design flow, Mpa 2.78 Outlet steam temperature of HP turbine, °C 333 Relevant casing wall thickness, mm 90 After 150000 service hours, non-destructive testing detected cracks at the HP casing entrance and due to this, it was necessary to perform the assessment of its remaining

    Get Price