mach number造句
1 The results indicate that the inlet Mach number and incidence have significant effects on the starting and ending positions of the viscous flow transition.
2 The profiles of density, velocity, temperature, pressure and Mach number can be obtained by the computation.
3 A code is developed to predict the Mach number compressible fluid flow with pressure - correction algorithm . 2 .
4 The velocity, temperature, pressure, and Mach number are analyzed according to the simulation result and the difference between vane diffuser and vaneless diffuser is studied.
5 The critical Mach number of the same spheroids in the different medium is deduced and the effect of compressibility under the same Mach number of main flow is analyzed.
6 The increasing of the incoming flow Mach number will decrease the total pressure recovery coefficient.
7 Increasing exit flow angle and Mach number are two ways to reduce SWR.
8 It presents the influences of ejection parameter, freestream Mach number, boattail angle and length of model, geometric size of jet hole, as well as model rotary speed on drag reduction rate.
9 The hot air permitted higher speeds before the critical Mach number was exceeded.
10 The paper points out that the loss coefficient tends to increase abruptly when the hood inlet Mach number attains a certain magnitude.
11 There exist a close coupling relation between the wind tunnel flow field parameters, total pressure and Mach number.
12 For superheated steam and clean gas, a valve outlet mach number below 0.4 is recommended for continuous operation and below 0.5 for intermittent operation.
13 The results show that the transition more likely happen under the situations with high azimuthal wave number and speed, and at a relatively low mach number and high Reynolds number.
14 It is shown that the attenuation coefficient will decrease obviously with the increase of Mach number, and the nonlinear acoustic resistance and acoustic mass will reduce slightly.
15 The monitoring points in different position of the turbine stage have been calculated and analyzed, the Mach number, subcooling rate and the wetness fraction oscillate periodically.
16 The results indicate that passive control technique can reduce peak Mach number on the surface of the airfoil and reduce the adverse pressure gradient, shock is also weakened.
17 In the developed model, two key parameters, the BVI miss-distance and trace Mach number, were brought in.
18 The results show that the entry vehicle is aerodynamically stable when the Mach number is more than1.2.
19 C/SiC thermal protection scheme works well up to flight mach number not exceeding 8, and only gas jet thermal protection scheme can protect strut leading edge from destruction up to Mach 8 and higher.
20 There are shock lets in the mixing layer with convective Mach number 1.2.
21 The computational results show that the thrust-vectoring angle is dependent on the freestream Mach number, nozzle pressure ratio(NPR), the position of the injection and secondary pressure ratio(SPR).
22 This example demonstrates that a low trim exit velocity head does not result in a low noise level in the valve, unless the valve outlet mach number is low.
23 The numerical simulation technique is used to investigating the isentropic Mach number distribution on the different swept height blade surfaces of a turbine last stage blades.
24 The average effective pitch damping increases with increasing angle of oscillation amplitude and decreases with increasing Mach number.
25 Pilots must therefore ensure that any required corrections to indicated Mach are taken into account when complying with the True Mach number specified in the ATC clearance.
26 This method is used to design a series of nozzles. Their Mach number profiles are satisfied for the users.
27 It is necessary to simulate the high enthalpy, high pressure, Mach number and the same concentration of oxygen species as air in hypersonic flight.
28 In transonic flow, a simple empirical formulation is given to predict the wave drag of upswept aftbody, which extends the usable range of Mach number.
29 In ejector and ramjet modes, working over a wide Mach number range is very important for the RBCC inlet, so the 2D RBCC inlet should be variable-geometry.
30 After pitot static vents of total static pressure system are covered, the real airspeed, Mach number and pressure altitude are not displayed from cockpit instrument, and the accident might happen.
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