空泡螺旋槳 的英文怎麼說
中文拼音 [kōngpāoluóxuánjiǎng]
空泡螺旋槳
英文
cavitating propeller- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 泡 : 泡Ⅰ名詞1 (氣泡) bubble 2 (像泡一樣的東西) sth shaped like a bubble Ⅱ動詞1 (較長時間地放在液...
- 螺 : 1. [動物學] (軟體動物) spiral shell; snail; conch 2. (螺旋形的指紋) whorl (in fingerprint)
- 旋 : 旋Ⅰ動詞1 (旋轉) whirl 2 (用車床切削或用刀子轉著圈地削) turn sth on a lathe; lathe; pare Ⅱ名詞...
- 槳 : 名詞1. (劃船用具) oar; paddle 2. (螺旋槳) propeller
- 空泡 : [醫學] vacuole; physalides; vacuolus
- 螺旋槳 : [機械工程] screw propeller; propeller; screw; blade; airscrew; propeller screw; propelling screw...
- 螺旋 : 1 (具有螺紋的圓柱體 屬于斜面類的簡單機械) corkscrewspin; screw; spiral; helix 2 (螺旋現象;尾旋...
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Code for propeller cavitation tests in uniform flow carried out in cavitation tunnel
空泡水筒均流中螺旋槳模型試驗規程The propeller cavitation range determined by calculation method presented in this paper agrees with the observation result of cavity image at cavitation tunnel very well, which proves the practicability of this method
應用本文計算方法確定的螺旋槳空泡范圍經與空泡水洞中的空泡圖象觀察結果比較,證明了該方法的可行性。The advantage and disadvantage of measurement of propeller - induced pressure by using different equipment is discussed. the method to obtain self - propulsion point for full scale in depressurized towing tank is studied. the measurements of pressure of two propeller models are carried out, the results of the measurement agree with those obtained by cavitation tunnel very well, which proves this measurement is successful, and the theoretical prediction is verified too
比較了不同測試設備用於螺旋槳脈動壓力測試的優缺點,探討了在減壓拖曳水池中實現實船自航點的方法,並進行了兩只螺旋槳模型的脈動壓力測試,經與空泡水洞中脈動壓力的測試結果進行比較,說明該項測試是成功的,同時也對脈動壓力的理論預報結果做了驗證。To improve the efficiency of solution, the solution method to determine the cavitation range of blade is carried out for each chordwise string, the interaction between strings is included by spanwise iterative procedure
為了提高求解效率,本文在確定螺旋槳槳葉上空泡范圍時採用的求解方法是針對每一個弦向「條帶」進行的, 「條帶」之間的相互影響通過沿槳葉展向的迭代考慮。This paper presents a design method of propeller blade section operating in non - uniform flow field and an idea of equivalent operating curve with unchanged cavitations characteristic on blade section, the method for selecting the curve is set up
摘要給出了非均勻流場中螺旋槳槳葉剖面的設計方法,提出了保持剖面空泡特徵不變的等效運轉曲線的思想,並創建了等效運轉曲線的確定方法。3 ) open - water and self - propulsion tests for the hd propeller and mau propeller. 4 ) cavitation observation and pulsing pressure measurement
3 )滬東型( hd ) mau圖譜槳的敞水試驗和自航試驗4 )滬東型( hd )螺旋槳的空泡觀察與脈動壓力測量。When the propeller operates in the spatially non - uniform velocity field behind the ship, the unsteady cavitation on the blades often causes the vibration of ship structure, the propeller noise and the cavitation erosion on the blade
在船尾非均勻流場中工作的螺旋槳,常常由於槳葉上產生了非定常空泡,導致船尾振動和螺旋槳噪聲,致使槳葉表面出現空泡剝蝕。Presently most of the theoretical method to predict the propeller - induced hull pressure fluctuation is based on the calculation method in which the pressure is induced by pulsating source in infinite flow. the calculation method is adopted and the corresponded computer program is complied. the propeller - induced hull pressure fluctuation due to blade thickness, blade load, cavity thickness and the change of the cavity volume can be analyzed respectively in the computer program
目前,螺旋槳誘導的船體表面脈動壓力的理論預報方法,大多是以無限流場中點脈動源誘導的周圍流場的脈動壓力的計算方法為基礎的,本文採用該方法編制了計算程序,可以分別考慮槳葉厚度、槳葉負荷、槳葉上空泡厚度及其體積變化在船體表面指定位置上產生的脈動壓力。With the fund item sponsored by the national laboratory of hydrodynamics, the study on measurement method of propeller - induced pressure with using self - propulsion model has been carried out in depressurized towing tank
在脈動壓力的模型測試研究方面,本文在水動力學國家重點實驗室基金項目的資助下,對在減壓拖曳水池中利用自航模進行空泡螺旋槳誘導的脈動壓力的測試方法進行了研究。The prediction of propeller - induced hull pressure fluctuation in non - uniform flow is studied by using theoretical calculation and model experiment systematically. an intact method and computer program for the prediction of unsteady cavitating propeller - induced hull pressure fluctuation in non - uniform flow is set up in this paper. the measurement of propeller induced hull pressure fluctuation in depressurized towing tank carried out in this paper is the first time inland
本文從理論計算和模型試驗兩個方面系統地研究了不均勻流場中螺旋槳空泡誘導的船體表面脈動壓力的預報問題,建立了一套完整的預報非定常空泡螺旋槳誘導的船體表面脈動壓力的方法和程序,並在國內首次完成了在減壓拖曳水池中進行空泡螺旋槳誘導的船體表面脈動壓力測試。This technique can effectively improve the cavitation performance and resolve the design problem of propeller operating in unsteady flow field
能有效地改善非均勻流場中螺旋槳的空泡性能。解決了非均勻流場中螺旋槳設計問題。To avoid or reduce these trouble induced by the unsteady cavitation, the theoretical design method for propeller and the blade section with the good cavitation performance are adopted to enlarge the cavitation bucket width and control the range and type of the cavitation on the blade. this enables propeller to operate in the non - uniform ship wake rather well
為了避免或減緩空泡帶來的危害,採用螺旋槳理論設計方法和空泡性能優良的槳葉剖面來增加空泡斗寬度和控制槳葉空泡范圍及空泡類型,以適應非均勻流場中螺旋槳工作的需要。This paper has presented the calculation formula and numerical solution methods to determine the range and volume of partially cavity, supercavity by using surface panel method, and has predicted the range and volume of unsteady cavitation of propeller by using surface panel method for the first time inland
本文敘述了應用面元法確定非定常螺旋槳局部空泡、超空泡的范圍和體積的計算公式和數值求解方法,在國內首次應用面元法預報了螺旋槳非定常空泡的范圍和體積。The better agreement between the calculated value and the measurement result of propeller - induced hull pressure fluctuation proves that the program in this paper can be suitable for engineering application
經與空泡水洞中螺旋槳模型脈動壓力測試結果比較,表明本文的計算程序可以用於工程實際。Based on the cavitation chart it can be seen that the charging air with appropriate parameters on blade surface is efficient and feasible for improving the cavitation performance of propeller blades
根據翼型在充氣前後的壓力分佈,確定空泡斗的變化,從而可以認定按適當參數提供的二相流對于擴大空泡斗,以改善螺旋槳空泡性能是有益的和可行的。The two - phase flow on blade surface by means of charging air is one of technical manners to improve the cavitation performance for marine propellers
在槳葉表面充氣,以氣液二相流代替單相流動,實現擴大空泡斗,是當前船舶螺旋槳減振降噪措施之一。分享友人