Reaction thrust of water jet for conical nozzles |
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| Authors: | Guo-qin Huang You-sheng Yang Xiao-hui Li Yu-quan Zhu |
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| Institution: | School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,P.R.China |
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| Abstract: | Clear knowledge on the reaction thrust of water jet is valuable for better design of water jet propulsion system. In this
paper, theoretical, numerical and experimental studies were carried out to investigate the effects of the nozzle geometry
as well as the inlet conditions on the reaction thrust of water jet. Comparison analyses reveal that the reaction thrust has
a direct proportional relationship with the product of the inlet pressure, the square of flow rate and two-thirds power exponent
of the input power. The results also indicate that the diameter of the cylinder column for the conical nozzle has great influence
on the reaction thrust characteristics. In addition, the best values of the half cone angle and the cylinder column length
exist to make the reaction thrust reach its maximum under the same inlet conditions.
Project supported by the National Natural Science Foundation of China (Grant No.50375056), and the National High-Technology
Research and Development Program of China (Grant No.2006AA09Z238) |
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| Keywords: | conical nozzle reaction thrust thrust coefficient wate jet |
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