搜索结果: 1-8 共查到“Flow Simulation”相关记录8条 . 查询时间(0.096 秒)
为了了解流体在球阀不同开度下的流动状态及对应的流阻系数，应用商业软件Solid Works Flow Simulation 对球阀不同开度的三维流场进行数值仿真模拟和可视化研究。模拟结果表明，在开度较小的情况下，阀芯横截面流速沿中心线呈对称分布，阀芯内部流场存在一对尺寸相等、方向相反的漩涡，且这对漩涡基本占据整个流道；同时出口管路也存在强烈的涡流，随着球阀开度的增大，流动达到稳定，漩涡消失。利用数...
Mesh refinement and modelling errors in flow simulation
Mesh refinement modelling errors flow simulation
2015/7/1
We present a perspective on verification and validation of CFD tools for analysis and design, identifying principal sources of error due to approximations in the physical model, numerical discretizati...
High Speed Flow Simulation in Fuel Injector Nozzles
High Speed Flow Simulation Fuel Injector Nozzles
2014/10/23
Atomization of fuel is essential in controlling combustion inside a direct injection engine. Controlling combustion helps in reducing emissions and boosting efficiency. Cavitation is one of the factor...
A High–order Accurate Gas-kinetic Scheme for One-and Two-dimensional Flow Simulation
Gas-kinetic scheme initial reconstruction BGK model Boltzmann equation,
2014/9/26
This paper develops a high-order accurate gas-kinetic scheme in the frame-work of the finite volume method for the one- and two-dimensional flow simulations,
which is an extension of the third-order ...
通过PRO/E和ADAMS虚拟样机技术对甘蔗收割机的整机及关键部件进行动力学仿真，分别对扶起装置、切割装置、夹持输送装置、铺放输送装置和剥叶装置等关键技术进行虚拟试验，研究了各部件收获甘蔗时的物流过程。通过高速摄影试验，分析扶起装置与夹持输送装置衔接过程并进行了田间试验验证。结果表明，虚拟样机能够顺利实现甘蔗的扶起、切割、夹持输送、铺放输送和剥叶等工序，可为生产物理样机提供参考。
The flow caused by a dam breaking across its entire length can be approximated
by a one-dimensional, unsteady flow model in form of the St. Venant
equations. In this model, the flow is governed by t...
Modeling and flow simulation of a volcanic reservoir Application of multi-point geostatistics and probability perturbation theories to a real field
volcanic reservoir multi-point geostatistics probability perturbation
2009/4/24
A domestic gas field was modeled and flow-simulated. Its reservoir body comprises stacked rhyolite lava domes erupted under submarine environment. Porous network developed inside and chilling by seaw...
Influence of rheology on debris-flow simulation
Influence of rheology debris-flow simulation
2009/12/29
Systems of partial differential equations that include the momentum and the mass conservation equations are commonly used for the simulation of debris flow initiation, propagation and deposition both ...