On the basis of experimental wind tunnel research, a topological classification of possible delta wing flow regimes is given and a diagram in angle of attack-sweep angle coordinates is constructed. A regime with two pairs of symmetrically disposed whirlwind like vortices formed on the surface of ...
A constriction in a fluid flow system, such as an airplane's wing or a wind tunnel, causes a decrease in the cross-sectional area through which the fluid can flow. This results in an increase in the velocity of the fluid, as described by the continuity equation. What is the difference ...
In the current study, a novel method is proposed and evaluated for PIV measurement inside a closed cycle of organic vapor in a closed wind tunnel for both subsonic and supersonic regimes. This method can be used to prepare the experimental results of simple flow to validate the dense gas ...
The experimental tests have been conducted in an incompressible subsonic wind tunnel. The comparison indicates a satisfactory agreement between the experimental results and the theoretical analyses. Moreover, the effects of different parameters such as wing thickness, wing aspect ratio, spanwise store ...
Peculiarities of the hot-wire technique in operation for transonic wind tunnel are discussed. By using the band-pass technique with the method of the hot-wire fluctuations diagram technique, the intensity of the mass flow and total temperature fluctuations, correlation coefficients and their frequency...
Peculiarities of the hot-wire technique in operation for transonic wind tunnel are discussed. By using the band-pass technique with the method of the hot-wire fluctuations diagram technique, the intensity of the mass flow and total temperature fluctuations, correlation coefficients and their frequency...
Figure 5. A picture of an experimental wind tunnel. The MEMS sensor is embedded on the surface wall of the test section in the fully developed high-speed subsonic flow. 4.2. Wall Shear Stress Measurement Firstly, the time variation of the heater output (heater power) during constant flow ...
Figure 8. Schematic diagram of the length of each section. The mesh model of the above sections is shown in Figure 9. Since the structure is axisymmetric, only a 1/4-size model is built. Figure 10 shows the inlet nozzles of the Mars wind tunnel. Based on the previous discussion, we...