![]() ![]() Examples are valves and plasma actuators. Passive devices, like turbulators or roughness elements, are steady and require no energy by definition. Active control requires actuators that may be driven in a time-dependent manner and require energy. ![]() This change may be accomplished by passive or active devices. It implies a small change of a configuration serving an ideally large engineering benefit, like drag reduction, lift increase, mixing enhancement or noise reduction. ![]() Flow Control Flow control is a major rapidly evolving field of fluid dynamics.The batching system is a batching system that uses a control device, a volume sensor and a shutoff or stopper in the form of a pump or valve. So when we set a batch control at a volume of 500 liters, the flow will be closed if the volume read on the flow meter shows the number 500 l and the flow will return to flow when we press the start button as is widely used in gas stations. The basic principle of batch control is to control a valve or pump to start / turn on and close / stop the flow when the volume of flow has been reached. The main purpose of this batching system is to obtain an accurate volume and is used mostly in the food industry, cement industry, beverage industry, and its direction is the filling system. The Batch Controller can be used using a flow meter that incorporates a contact head register (pulse switch). ![]()
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