How is flow around a half body obtained? ( )
A: By adding a sink to a uniform flow
B: By adding a vortex to a uniform flow
C: By adding a source to a uniform flow
D: By adding a source and a sink
A: By adding a sink to a uniform flow
B: By adding a vortex to a uniform flow
C: By adding a source to a uniform flow
D: By adding a source and a sink
举一反三
- According to whether the moving elements change with time, the flow is divided into uniform flow and non-uniform flow.
- What best describes the normal blood flow to the lungs in a supine patient? （ ） A: largely uniform B: decreased flow to apices relative to bases C: increased flow to upper lobes
- In the pipe flow, the cross-section velocity distribution of laminar flow conforms to （ ） A: Uniform law B: Law of linear change C: Parabolic law D: Law of logarithmic curve
- When roughing cast iron, the mainly cooling cutting fluid should be added with sufficient and uniform flow .
- Three types of flow regimes are steady-state flow, __ to describe the fluid flow behavior and reservoir pressure. A: Radical flow B: Unsteady-state flow C: Pseudosteady-state flow D: linear flow