渦旋點 的英文怎麼說
中文拼音 [guōxuándiǎn]
渦旋點
英文
vortex point-
Firstly, this paper designs a polar coordinate barotropic vorticity equation semi - spectral model and a quasi - geostrophic grid model in order to research the propagation of vortex rossby waves and tropical cyclone intensity change entirely
本文首先設計了一個極坐標系正壓渦度方程的半譜模式、一個準地轉格點模式對渦旋rossby波傳播和熱帶氣旋強度變化進行了較為系統的研究。The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm
結果表明:此次霍山暴雨發生前後,存在明顯的大強度低空急流,並受到中尺度切變線的影響,而且正渦度的加強引起了輻合加劇,提高了上升速度從而引起降水,同時暴雨發生前螺旋度的迅速增強,也為預報提供了根據,另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。The research on the rotor blade - vortex interaction ( bvi ) noise is a very important aspect and a very challenging subject in the rotorcraft aeroacoustics field
旋翼槳-渦干擾噪聲問題是直升機氣動聲學領域的一個研究熱點和難點。Its peculiarity is that the vortex pair formed on the ejection stroke can ? move far enough under the self - induced velocity, so the vortex pair is sucked into the cavity of the actuator during the suction stroke
這種流動的特點是:在作動器的「吐出」行程,其出口產生的旋渦對還來不及向下游遷移便進入了作動器的「吸入」行程,重新進入作動器腔體。Because of its special structure, the high velocity flow under the shield, big vortex and upcast flow behind the shield will affect the spray drift. if these situations could be changed, the drift can be reduced further
但由於該罩蓋的結構特點,其下方產生較大速度的運動氣流和罩蓋後部產生的渦流以及上旋氣流,將直接影響霧滴的飄失。The theoretical analysis on the operational characteristics of gshps taking into consideration of the characteristics that taking soil as the heat source and cold source, by means of thermodynamic methods, the theoretical research on the operational changing patterns of gshps with a scroll compressor using r22 as refrigerant has been conducted
土壤源熱泵系統運行特性的理論分析針對以土壤為冷熱源的特點,運用熱力學的方法,對r22渦旋壓縮式土壤源熱泵系統的運行變化規律進行理論研究。Energy losses leading to a decrease in head are also done away with, likewise losses in flow rate from the screening installations, both of which can have a detrimental effect on the efficiency of the facility. the constructional effort required for a hydrodynamic screw is small compared to that required for a turbine. if the compact version of a hydrodynamic screw hydrodynamic screw trough power take - off unit combined as a single unit is used, the constructional effort can be further reduced
水力螺旋機技術的優點有:無需監控系統,可自行調節水體供給和供給頻率運行效率高於水輪機和小型渦輪機效率梯度平穩轉速低20rpm - 80rpm ,運行穩定防磨損無需定期清潔,易維護對河道湖泊里的魚蝦無損害基礎工事少,安裝簡便無堵塞,無需隔欄裝置能量利用充分等。Finally, the experiments on the rotor bvi noise are conducted both in an aeroacoustic laboratory and at outdoors, and the noise characteristics at different locations are measured on different blade - tip mach numbers, collective pitch angles and rotor configurations. based on the experimental results, some new conclusions are presented
本文第七章分別在「消聲室」和外場進行了模型旋翼的槳-渦干擾噪聲實驗,對不同馬赫數、不同槳距角以及不同旋翼布置情況下的不同測點進行了噪聲測量,得出了一些新的結論。By comparing single - scroll compressors with twin - scroll compressors, the gas forces of twin - scroll compressors vary smoothly with the crank shaft angle
與單頭渦旋齒所受氣體力相比,雙頭渦旋齒所受的氣體力具有變化平穩,波動小等特點。Scroll compressor is a new type compressor which is developed quickly recently, widely used in refrigeration and air conditioning industry. it has characteristics of high efficiency, consuming little energy, few parts, compact structure and working smoothly
渦旋壓縮機是最近快速發展起來的一種新型高效的容積式壓縮機械,具有效率高、能耗小、零部件少、結構緊湊、運行平穩等特點,廣泛應用於製冷空調及氣體壓縮領域。Scroll compressor, used as main engine in auto aircondition system, has small volume, light weight, low noise, low vibration, good seal, high volume efficiency and high heat insulation efficiency
渦旋壓縮機是汽車空調器的製冷主機,具有體積小、重量輕、低噪聲、低振動、密封好、容積效率和絕熱效率高等優點。Because of the advantages of small size, light weight, fewer moving parts and hi performance, the rotary compressor, such as the sliding compressor, the rolling piston type rotary compressor and the scroll compressor, is widely used in the air conditioner and refrigeration system. but these rotary compressors still have many disadvantages
回轉壓縮機,如滑片壓縮機、滾動轉子壓縮機、渦旋壓縮機等,因其體積小、重量輕、零部件少及性能好等優點,被廣泛應用於空調、製冷行業中,但這些壓縮機自身仍存在許多不足之處。On application of visual movement, this research is found if “ wo hsuan ” has been developed to the best, two necessary factors ? “ external pattern performance ” and “ internal symbolic meaning ” must be simultaneously considered
本研究最後共歸納出以下三點結論: 1 .渦旋造形應用於視覺傳達設計上,所能發揮的視覺張力非常的強烈,如能善加運用於廣告設計、海報、圖象設計等,將可造成更為有效的注目性與傳達性效果。In the paper, interrelated background and working principle of the quasi two - stage compression heat pump system coupled with ejector are introduced in detail firstly. working process of ejector and scroll compressor with supplementary inlet are analysed mainly and the mathematic model of the system is set up
本文首先對與準二級壓縮?噴射復合熱泵系統的相關背景進行了綜合闡述,並對該系統進行詳細介紹,重點對系統中的噴射器和帶輔助補氣口的渦旋壓縮機的工作過程進行分析並建立數學模型。These small vortices brought significant changes to the headwind locally, as amply demonstrated in the accompanying figure which shows the headwind changes between the weather buoy and the anemometer near the 07l touchdown zone
這些小渦旋令飛機感受的逆風產生顯著變化,這點從浮標氣象站及07l跑道陸區風速表的逆風變化圖可清楚看出來。Based on the experiments, the simulation of the heat exchanger and scroll compressor was accomplished which also offered a favorable condition to the establishment of the whole gwshp methods were used to improve the veracity and astringency of the model, such as : dividing the condenser into several tiny segment with equal area ; separating the condensing process into single - phase region and double - phase region ; the comparing result showed that most of the error between the data of simulation and experiment was within 5 % while the maximal error was 8. 35 %
在建模過程中,從大量蒸發和冷凝的換熱關聯式中,通過與實驗數據的比較找出了與實驗結果最為接近的換熱關聯式在建模過程中,針對冷凝器及板式換熱器的特點,採取將冷凝器按面積分成若干個微元段,並將冷凝過程分成單相區和兩相區的方法。同時對渦旋壓縮機進行建模和分析同時在熱力學平衡基礎上與實驗數據比較,經過驗證,對于換熱器模型,模擬計算與實驗結果的誤差一般都在5以內,最大為12 。The advanced development on the new kinds of scroll profile has become the research focus in the profile design. used a new type scroll compressor of the combination profile in this paper, a scroll is constructed following this : the inner turn consists of the standard involute of circle, and the same to the outer turn. then the middle turn is one of arc
本文所研究的新型組合曲線渦旋壓縮機最內圈以基圓漸開線構成,中間段以圓弧過渡,最外圈由圓漸開線構成,能發揮不同型線的優勢,是一種能滿足多性能較優要求、形狀性態良好的渦旋型線,與傳統的基圓漸開線構成的渦旋壓縮機相比,具有效率高、泄露量少、體積利用系數大等優點。This paper utilizes the software matlab to program the each working volume. it helps to analyze the volume change curve. at the same time, comparison with combination profile compressor and single circle compressor is presented, with the result that combination profile compressor has the advantages of high efficiency, little leakage and high quotient of volume using
論文運用matlab數學軟體對新型組合曲線渦旋壓縮機的各個壓縮腔的容積進行了編程運算,對各個壓縮腔容積的變化規律給出了幾何直觀的描述,並且對組合曲線壓縮機和圓漸開線的壓縮機進行了性能對比分析,證明組合曲線渦旋壓縮機具有效率高、體積利用系數大等優點。This paper analyzes the detailed rule of the each working volume with the changing of the scroll profile types, the different equation for the scroll chamber working process is inferred. the fundamentals for calculating the kinematics and property of scroll compressor are given
詳細推導了各壓縮腔在不同嚙合點時容積的計算公式,為準確計算組合曲線渦旋壓縮機的性能參數提供了依據,為動力學分析打下了基礎。Among the engine ' s features are the twin - scroll turbocharger and the high - pressure direct petrol injection system
其中發動機的特點是雙渦旋增壓器和高壓將汽油直噴系統分享友人