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- It is not correct to think of the wind tunnel having uniform flow. 设想风洞具有均匀的气流是不正确的。
- free molecule flow wind tunnel 自由分子流风洞
- The planes survived the wind tunnel test intact. 这些纸飞机在测试风道中丝毫未损。
- A flow passage in a wind tunnel that decelerates a stream of gas or liquid from a high to a low velocity. 扩散道风洞中的气流变迁,将会调整度的气体或液体流降到低速
- An experimental investigation was conducted in FL-21 wind tunnel to study cavity flow characteristics. 在FL-21跨、超声速风洞中对空腔流场特性进行了较为深入的实验研究。
- After the study, further recongniztion are done to flow characteristics of high enthalpy free piston shock wave wind tunnel. 通过该研究工作,对高焓自由活塞激波风洞的流动特性有进一步的认识。
- Detailed flow field measurements were conducted in a low speed wind tunnel for both original and modified LGV's which are used in turbofan engines. 采用实验方法对某型弹用涡扇发动机涡轮低压导向器原型和改型进行了详细的低速风洞实验。
- Setting very low speeds in a wind tunnel is always a vexatious problem. 在风洞中调出低风速来始终是一个麻烦问题。
- The flow field visualization of a straight HP trubine cascade is conducted in alarge-scale low-speed open-loop cascade heat transfer wind tunnel. 在大尺寸低速叶栅传热风洞中对一种高压涡轮导向叶栅的流场进行了流动显示实验研究。
- Research is conducted on the energy loss of flow around a cascade of guide vanes in a low speed wind tunnel numerically and experimentally. 低速回流式风洞中拐角部位的流动损失占总损失的比重很大,该位置导流片绕流的流动状况对于流动损失有明显的影响。
- Aescin is being used in brain edema, open injuries, swelling after operations, venous return flow diseases. 七叶皂甙用于脑水肿,创伤或手术后引起的肿胀;与静脉回流障碍性疾病。
- Objective:To explore the effect on cardiac light murmur and cardiac tricuspid valve return flow in normal children. 目的:探讨正常儿童心脏轻度杂音与瓣膜返流的相关性。
- It should be noted that a balance is not always required in a wind tunnel. 应该指出,天平对风洞来说并非是绝对必须的。
- The aerodynamics characteristics of this airfoil is studied in wind tunnel. 进行了翼型的低速气动力性能研究,为附面层特性研究提供了方向。 结果表明,该翼型具有较好的升阻和俯仰特性,但失速特性差。
- Instead of closed boundary conditions which will bring large pressure effects because of return flow, a flow through boundary condition is adopted. 该模型的主要特点是采用开放边界条件,从而可以避免原有封闭模型因回流问题而产生的复杂效应。
- Force and PIV local flow measurements were conducted in a low speed wind tunnel to study the effectiveness of serrated Gurney flap at different deflections. 用低速风洞测力试验和襟翼处绕流的PIV测量试验研究锯齿形格尼襟翼在不同偏角下的增升效益.
- By the use of a cylindrical coordinate system a numerical simulation was conducted of a single tube return flow combustor flow field. 运用圆柱坐标系对单管回流燃烧室流场进行了数值模拟。
- Placing the check valve in parallel with the pressure-reducing valve allows free return flow when the weld cylinder retracts. 将止回阀与减压阀门允许自由回流焊接钢瓶时收回。
- Experiments of dispersion for continuous spill of heavy gas in the turbulent boundary layer flow of coastal and harbor region were conducted in the environmental wind tunnel. 摘要本实验系在环境风洞中模拟探讨于海岸港口地区紊流边界层内重质气体连续溢漏时所形成云团之扩散特性。
- A membranous structure in a hollow organ or passage,as in an artery or a vein,that folds or closes to prevent the return flow of the body fluid passing through it. 瓣,瓣膜在中空器官或管道,例如静脉或动脉血管中的膜状结构,能够收紧或关闭以防止通过其的体液倒流