It is necessary to know the flow of cooling water because it directly related to the diameter of the channel will be designed to cool. Cooling water flow is calculated by the following formula :? Pressure loss along the cold channel (DP): pressure drop along
the road in the cold channel is defined as follows:
+ DP = Pvao - Pra
+ Pvao, Prague: pressure in and out of the system pressure do cool.
in the above formula, found that cold channel diameter is inversely proportional to pressure loss in the cold channel. If the cold channel diameter decreases, the area of the heat exchanger and the cold channel mold makes reduce pressure losses increased significantly. But cold is too large diameter, the channel will affect the reliability molds, as well as the position of parts of the propulsion system is arranged on the site. According to experiments, can choose the minimum water flow required diameter corresponding to the following table to channel cool as always satisfies the requirements of the flow turbulent state :?
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