scholarly journals Calculation of Aerodynamic Performance Characteristics of Airplane Wing and Comparing with the Experimental Measurement

2015 ◽  
Vol 1 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Haci Sogukpinar ◽  
Ismail Bozkurt
Keyword(s):  
Experimental Measurement ◽  
Aerodynamic Performance ◽  
Performance Characteristics ◽  
Airplane Wing

Aerodynamic Performance Characteristics of the Installed V2527 Fan at Ground Operation

2016 ◽  
Author(s):  
Dirk Schönweitz ◽  
Richard Becker ◽  
Paul-Benjamin Ebel ◽  
Rainer Schnell ◽  
Michael Schroll
Keyword(s):  
Aerodynamic Performance ◽  
Performance Characteristics

scholarly journals Numerical Simulation of the Performance Characteristics of the Hybrid Closed Circuit Cooling Tower

2008 ◽  
Vol 13 (1) ◽  
pp. 89-101 ◽  
Author(s):  
M. M. A. Sarker ◽  
E. Kim ◽  
G. C. Moon ◽  
J. I. Yoon
Keyword(s):  
Pressure Drop ◽  
Experimental Measurement ◽  
Cooling Tower ◽  
Cfd Simulation ◽  
Air Flow ◽  
Flow Distribution ◽  
Cooling Capacity ◽  
Performance Characteristics ◽  
Closed Circuit ◽  
Flow Rates

The performance characteristics of the Hybrid Closed Circuit Cooling Tower (HCCCT) have been investigated applying computational fluid dynamics (CFD). Widely reported CFD techniques are applied to simulate the air-water two phase flow inside the HCCCT. The pressure drop and the cooling capacity were investigated from several perspectives. Three different transverse pitches were tested and found that a pitch of 45 mm had lower pressure drop. The CFD simulation indicated that when air is supplied from the side wall of the HCCCT, the pressure drop can be over predicted and the cooling capacity can be under predicted mainly due to the non-uniform air flow distribution across the coil bank. The cooling capacity in wet mode have been calculated with respect to wet-bulb temperature (WBT) and cooling water to air mass flow rates for different spray water volume flow rates and the results were compared to the experimental measurement and found to conform well for the air supply from the bottom end. The differences of the cooling capacity and pressure drop in between the CFD simulation and experimental measurement in hybrid mode were less than 5 % and 7 % respectively for the uniform air flow distribution.

Aerodynamic Performance Characteristics of MGT Compressors

2021 ◽  
Vol 24 (6) ◽  
pp. 47-55
Author(s):  
Young Seok Kang ◽  
Jaesung Huh
Keyword(s):  
Aerodynamic Performance ◽  
Performance Characteristics

A Comparative Study: Aerodynamics of Morphed Airfoils Using CFD Techniques and Analytical Tools

2017 ◽  
Author(s):  
Anwar Alsulami ◽  
Muhammad Akbar ◽  
Woong Yeol Joe
Keyword(s):  
Fluid Dynamics ◽  
Aerodynamic Performance ◽  
Cfd Model ◽  
Ansys Fluent ◽  
Accurate Comparison ◽  
Airplane Wing ◽  
Computational Fluid Dynamics Cfd ◽  
Drag And Lift ◽  
Wing Morphing ◽  
Analytical Tools

This paper presents an aerodynamics study of wing morphing by creating a Computational Fluid Dynamics (CFD) model using ANSYS FLUENT. First, known National Advisory Committee for Aeronautics (NACA) 2410 and 8410 profiles of airfoils are modeled. Models are run using prescribed initial and boundary conditions to simulate the morphed wing and flow around it. The Shear Stress Transport (SST) k–ω turbulence model is used to obtain an accurate comparison with the analytical results. Once satisfied with validation, variable cambers between NACA 2410 and 8410 are used in two ends of a wing to mimic a morphed wing situation. Drag and lift coefficients are analyzed for this configuration to understand effects of the airfoil shape on aerodynamic performance. A refined mesh is created near the airfoil wall to capture the flow details. This study is a step forward towards understanding how to accurately model the dynamic morphing of an airplane wing.

Quadri-directional Air Thrusters for Free-floating Robot Applications

1995 ◽  
Vol 117 (4) ◽  
pp. 651-653 ◽  
Author(s):  
N. Batsios ◽  
M. Annapragada ◽  
Sunil Kumar Agrawal
Keyword(s):  
Experimental Measurement ◽  
Performance Characteristics ◽  
Ohio University ◽  
Good Match ◽  
Pressure Regulator ◽  
Digital Output ◽  
Operational Theory

This paper describes the operational theory and design of a quadri-directional air thruster ( “quad” ) for propulsion of the free-floating robot of Ohio University. In this design, the air is drawn from a central air tank and routed to four nozzles of a quad thruster via a pressure regulator, a distribution manifold, four solenoid valves, and a quad manifold. The pressure regulator is controlled by a d.c. servomotor and the solenoid valves are turned on/off using the digital output ports of the computer. The performance characteristics of this quad thruster were determined experimentally. The experimental measurement of the thrust as a function of the regulated pressure shows a good match with the data predicted by the supporting theory.

scholarly journals Investigation of aerodynamic performance characteristics of a wind-turbine-blade profile using the finite-volume method

2020 ◽  
Vol 161 ◽  
pp. 1359-1367
Author(s):  
Onur Erkan ◽  
Musa Özkan ◽  
T. Hikmet Karakoç ◽  
Stephen J. Garrett ◽  
Peter J. Thomas
Keyword(s):  
Wind Turbine ◽  
Finite Volume Method ◽  
Turbine Blade ◽  
Finite Volume ◽  
Aerodynamic Performance ◽  
Wind Turbine Blade ◽  
Performance Characteristics ◽  
Blade Profile ◽  
Volume Method

Thick Airfoils With Blunt Trailing Edge for Wind Turbine Blades

2010 ◽  
Author(s):  
C. P. van Dam ◽  
A. Cooperman ◽  
A. McLennan ◽  
R. Chow ◽  
J. Baker
Keyword(s):  
Wind Turbine ◽  
Fluid Dynamic ◽  
Lift Coefficient ◽  
Turbine Blades ◽  
Aerodynamic Performance ◽  
Boundary Layer Transition ◽  
Performance Characteristics ◽  
Trailing Edge ◽  
Layer Transition ◽  
Blunt Trailing Edge

This paper addresses the primary concerns regarding the aerodynamic performance characteristics of thick airfoils with blunt trailing edges (or so-called flatback airfoils) and the utilization of these section shapes in the design of rotor blades for utility-scale wind turbines. Results from wind tunnel and computational fluid dynamic studies demonstrate the favorable impact of the blunt trailing edge on the aerodynamic performance characteristics including higher maximum lift coefficient and reduced sensitivity of lift to premature boundary layer transition. The negative effect of the blunt trailing edge on drag can be partially mitigated through simple trailing edge treatments such as splitter plates. Studies on the effect of these section shapes on wind turbine rotor performance show that at attached flow conditions this inboard blade modification does not adversely affect rotor torque output. Blade system design studies involving the collective optimization of aerodynamic performance, structural strength and weight, and manufacturing complexity demonstrate the overall favorable impact of the flatback concept.

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