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- Ultimate pressure is measured as total pressure. 最后压力是全程压力测量值。
- The investigation shows that plenum chamber total pressure has multifarious effects on arcjet thruster operation, and both specific impulse and thrust efficiency can be improved by increasing it befittingly under steady arc. 研究表明,集气腔总压对推力器工作过程具有多方面的影响,在保证电弧稳定的情况下,适当提高集气腔总压可同时提高比冲和推进效率。
- The breakdown voltages of SF_6/O_2, SF_6/CO_2 and SF_6/air mixtures with a mixed ratio of 90/10 in 10mm point-plane gap is about 40% higher than that of pure SF_6 under positive lightning impulse voltages at 0.125MPa total pressure. 在极不均匀电场中向SF_6气体加入10%25的O_2、空气或CO_2;在0.;125MPa下的雷电冲击击穿电压将提高40%25左右。
- For small institutions, liquidity will be constrained bank lending pressure impulse. 对于小机构,流动性压力将约束银行放贷冲动。
- Pressure impulse of airplane hydraulic system is one of important reasons which cause hydraulic component fatigue damage earlier. 摘要飞机液压系统的压力脉动是造成液压元件提前疲劳损坏的重要原因之一。
- By sending low pressure impulse and receiving the reflection, the location of breaking point can be detected automatically. 通过发射低压脉冲波和接收反射的低压脉冲波,实现对电缆中断点位置的自动测定。
- The paper introduced a method that can locate the position of cable breaking point by using the reflection of low pressure impulse, and set up a control system through 89C52. 摘要介绍了一种利用低压脉冲反射法测定电缆断点位置的方法,并采用89C52单片机建立了控制系统。
- When Ma(subscript e)=0.45 the relative suction flow rate equals 0.043, the total pressure recovery increases by 2.6%. 在出口马赫数为0.;45,相对抽吸量为0
- Cavity length depth ratio strongly influences flow field、total pressure recovery、drag coefficient. 凹腔长深比对流场特性、总压恢复、燃烧室阻力影响显著。
- Effects of blade negative bowing on secondary flow, total pressure loss and outlet flow angle were analyzed quantitatively, mechanism of the effects was discussed as well. 定量地分析了叶片反弯曲对叶栅出口二次流、总压损失和气流角的影响,并探讨了叶片反弯曲作用的机理。
- The experimental data showed that the total pressure drop of the cross-flow RPB was influenced by rotating speed, gas flow rate and liquid flow rate. 实验表明错流旋转填料床的气相总压降与气体流量、旋转床转速、液体流量有关。
- The results show that total pressure recovery coefficient of this type inlet is increased in every yawed flight,and are less related to the yaw angle. 研究结果表明,这类进气道在各种侧滑状态下总压恢复系数较高,且与侧滑角的关系不大。
- The flow field characteristics and the total pressure recovery performance for different diffuser configurations were analyzed. 对不同构型扩压器的流场特点、总压恢复性能进行了分析;
- Velocity circulations at the trailing edges of each blade-row are optimized for overall maximization of total pressure ratio and isentropic efficiency. 优化目标为总压比和绝热效率最大,决策变量为转子和静子叶排尾缘速度环量。
- The experiments result shows: the model Z decreases the mean value and peak value of PRMS while upsream total pressure varies from 0.3 atm to 0.7 atm. 实验结果表明:开孔与中绊线组合方案对进口压力从0.;3到0
- The influences of the inlet angle and inlet total pressure of fluid on the temperature of electrode surface and nozzle exit fluid was analyzed. 分析了空气进口气流角、进口总压和等离子化学反应对电极壁面温度及喷嘴出口气流温度的影响。
- A multiobjective optimization for a two-stage axial-flow compressor design was performed for maximization of the overall adiabatic efficiency and the total pressure ratio. 针对一台两级轴流压气机,选定优化设计的目标是最大的总压比和最高的总绝热效率。
- Reynolds averaged Navier Stokes equation solution techniques were used to calculate the total pressure loss. Baldwin Lomax algebraic turbulent model is used as a turbulent model. 总压损失的计算采用Reynolds平均Navier-Stokes方程求解技术,紊流模型采用Baldwin-Lomax代数紊流模型。
- At the end of the annular passage,shock wave occurs when the relative lift is less than 6% and the pressure ratio is less than 0.7,which causes a greater total pressure loss. 在相对升程小于6%25、压比小于0.;7后;环形通道的末端将产生激波;激波带来较大的全压损失
- When the serpentine inlet is running at the exit Mach number Ma(subscript e)=0.45, the total pressure recovery coefficient equals 0.90, and synthesis distortion equals 13.85%. 本研究的蛇形进气道在出口马赫数为0.;45时,总压恢复系数为0