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星形喷嘴
相关语句
  star-shaped nozzle
     Experimental study on jet flowfield of star-shaped nozzle under submergent condition
     淹没条件下星形喷嘴射流流动特点的实验研究
短句来源
     under the submerged condition, within the stand off distance of 10 times do (do is the nozzle orifice diameter), the rock breaking ability of star-shaped nozzle jet is not as good as the round nozzle jet; however, within the 10-16 times do, the rock breaking ability of star-shaped nozzle jet is greater than the round jet.
     在淹没务件下,当喷距小于10倍喷嘴直径时,星形喷嘴射流的破岩能力较圆形喷嘴射流弱,但是当喷距达到10-16倍喷嘴直径时,星形喷嘴射流的破岩能力明显高于圆形喷嘴射流。
短句来源
  “星形喷嘴”译为未确定词的双语例句
     The Rock Crushing Characters of Star-shaped Jet
     星形喷嘴射流的破岩特点
短句来源
     The dynamic attenuation mechanism of the jets was discussed.
     利用粒子成像速度场仪对星形喷嘴射流的速度场进行了测量 ,分析了星形喷嘴的射流衰减机理。
短句来源
     It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.
     实验发现 ,星形喷嘴射流与普通圆射流相比 ,其射流初始段较短 ,但基本段内速度随喷距衰减的速率较低。
短句来源
     Within a standoff distance equal to about seven times of equivalent nozzle diameters,the jet centerline velocity of the star_shaped nozzle is lower than that of the round nozzle.
     在 7倍于喷嘴直径的喷距以内 ,星形喷嘴射流的速度低于圆射流速度。
短句来源
     When the jet distance is beyond the scope of this critical standoff distance,the jet velocity of the star_shaped nozzle is greater than that of the round jet.
     随着喷距的进一步增加 ,星形喷嘴射流的速度高于圆射流速度。
短句来源
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  相似匹配句对
     The Rock Crushing Characters of Star-shaped Jet
     星形喷嘴射流的破岩特点
短句来源
     Experimental study on jet flowfield of star-shaped nozzle under submergent condition
     淹没条件下星形喷嘴射流流动特点的实验研究
短句来源
     STUDY ON JET NOZZLE OF CONCENTRATES
     精矿喷嘴研究
短句来源
     sprayer temperature-40 ℃;
     喷嘴温度:40℃;
短句来源
     On the Support Points of Some Families of Starlike Functions
     一族星形函数的支撑点
短句来源
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The jets of star_shaped and round nozzles are different.The attenuation characteristics of the two jets were investigated experimentally.The dynamic attenuation mechanism of the jets was discussed.It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.Within a standoff distance equal to about seven times of equivalent nozzle diameters,the jet centerline velocity of the star_shaped nozzle is...

The jets of star_shaped and round nozzles are different.The attenuation characteristics of the two jets were investigated experimentally.The dynamic attenuation mechanism of the jets was discussed.It is found that the star_shaped nozzle jet has a shorter initial section and slower velocity attenuation along the jet centerline in the main region than the round nozzle jet.Within a standoff distance equal to about seven times of equivalent nozzle diameters,the jet centerline velocity of the star_shaped nozzle is lower than that of the round nozzle.When the jet distance is beyond the scope of this critical standoff distance,the jet velocity of the star_shaped nozzle is greater than that of the round jet.The biggest velocity and the dynamic pressure of the star_shaped nozzle jet are in a 20 percent and a 44 percent increase respectively than those of the roand jet.

对近期清洗行业出现的星形喷嘴射流进行了淹没条件下的实验研究。利用粒子成像速度场仪对星形喷嘴射流的速度场进行了测量 ,分析了星形喷嘴的射流衰减机理。实验发现 ,星形喷嘴射流与普通圆射流相比 ,其射流初始段较短 ,但基本段内速度随喷距衰减的速率较低。在 7倍于喷嘴直径的喷距以内 ,星形喷嘴射流的速度低于圆射流速度。随着喷距的进一步增加 ,星形喷嘴射流的速度高于圆射流速度。在 10~ 12倍于喷嘴直径的喷距范围内 ,星形喷嘴射流的最大速度和最大动压力分别提高了约 2 0 %和 44 %。该项研究为星形喷嘴射流在石油钻井工程中的应用提供了依据。

Experiments with the rock breaking ability of star-shaped jet is presented in this article. It is found that under the non-submerged condition, the rock breaking ability of star-shaped jet is greater than that of round jet; under the submerged condition, within the stand off distance of 10 times do (do is the nozzle orifice diameter), the rock breaking ability of star-shaped nozzle jet is not as good as the round nozzle jet; however, within the 10-16 times do, the rock breaking ability of star-shaped nozzle...

Experiments with the rock breaking ability of star-shaped jet is presented in this article. It is found that under the non-submerged condition, the rock breaking ability of star-shaped jet is greater than that of round jet; under the submerged condition, within the stand off distance of 10 times do (do is the nozzle orifice diameter), the rock breaking ability of star-shaped nozzle jet is not as good as the round nozzle jet; however, within the 10-16 times do, the rock breaking ability of star-shaped nozzle jet is greater than the round jet. Therefore, star-shaped nozzles, instead circle nozzles, can be fitted on cone bits to improve cuttings cleaning ability and rock crushing efficiency, and then increase the ROP.

在淹没和非淹没条件下对星形喷嘴射流的破岩能力进行了实验研究。结果表明,在非淹没条件下,星形喷嘴射流的破岩能力高于常规圆形喷嘴射流;在淹没务件下,当喷距小于10倍喷嘴直径时,星形喷嘴射流的破岩能力较圆形喷嘴射流弱,但是当喷距达到10-16倍喷嘴直径时,星形喷嘴射流的破岩能力明显高于圆形喷嘴射流。据此可将星形喷嘴应用于牙轮钻头,替代圆形喷嘴,以提高钻井清岩和辅助破岩效率,达到提高钻井速度的目的。

 
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