CFD
Analysis of Dense Liquid-solid Two Phase Mixture’s Process in Stirred Tank
Stirring operation is widely used in many fields of industry, such as chemical process and mining. Solid suspension in stirred tank is an important and difficult problem of two phase flow. Some scholars have studied on the dilute solid suspension in stirred tank. With the increasing of solid concentration, the collision between particles and turbulent [...]
Influence of Operating Condition for Mixing in Liquid-Solid Stirred Tank
Stirred tank is a common mixing equipment.In an stirred tank,mixed substance moves with the stirred paddle,acting with the fixed baffle,and forms complicated quasi-periodicity three-dimensional turbulent.In the present,Research on liquid-solid mixing has two methods:experimental measurement and numerical simulation. Experimental measurement is to measure liquid-solid flowing using several kinds of measurement devices through setting up experimental tables,numerical [...]
Research on Matching Technology of the Three-way Catalyst Converter for a Mini-car
The harmful emissions from the automobile have become a main pollution of the atmosphere in most cities of our country. It comes from I.C engine, including carbon monoxide （CO）, carbon hydrogen compound （HC）, the nitrogen oxygen compound NOx, particulate material （PM） and the sulfur dioxide （SO2） etc. And the CO, HC, NOx are the main [...]
Investigation on Three-Phase Coupled Calculation and Temperature Field Experiment in an Engine Cylinder Head
The cylinder head is one of the most important part of an internal combustion engine , which contacts the high pressure and high temperature gas directly, so its working condition is very poor. As the increasing of engine duty, the thermal load of cylinder head has become a key factor which affects the performance of [...]
Numerical Simulation on Fire Ventilation of Road Tunnel
With the unceasing improvement of socio-economic level and people’s living standards, the China’s road transportation network has been developed, bringing about a gradually increasing road traffic density. As an important part of highway, meanwhile, the number and length of road tunnels are then growing. The following would be the incidence of tunnel fires as well [...]
Performance Analysis and Technical Transformation of Tubular Turbine
Low-head hydraulic resource in our country are very rich,with the rapid growth in demand for energy consumption,and conflicts such as supply and demand problems.Reasonable and efficient development low-head resources is become an urgent need for us.Tubular turbine have many advantages such as have big flow, high-speed,high efficiency,wide high efficiency area,compact structure,and simple layout,and so on.By [...]
Research on Flow Characteristics of Control Valve Based on CFD
The control valve has been widely applied to chemical industry , petroleum , metallurgy、electricity、light industry, water conservation、shipping、aviation and so on. It is not only the key control components in fluid carrying system but also the main components for energy loss. So, to research the property of control valve is tremendously significant to reducing energy loss [...]
Research on Flow Characteristics of Control Valve Based on CFD
The control valve has been widely applied to chemical industry , petroleum , metallurgy、electricity、light industry, water conservation、shipping、aviation and so on. It is not only the key control components in fluid carrying system but also the main components for energy loss. So, to research the property of control valve is tremendously significant to reducing energy loss [...]
Research on Lift-Drag Type Vertical Axis Wind Turbine of Living Leaves
Nowadays, horizontal axis wind turbine is the most developed and the most common type of wind turbine, but also the most mature technology of a wind turbine at home and abroad. However, research on vertical axis wind turbine is late, the current research is still relatively very little, especially the lift-drag type vertical axis wind [...]