natural heat flow 中文意思是什麼
natural heat flow
解釋
天然熱流量法-
This thesis chiefly analyzes the problem of exchanging heat quantity and the methods of the improvement of cooling tower in power station, compares and analyses the advantages and disadvantages of it. this thesis will discuss how to prevent natural - draft counter - flow wet cooling tower from freezing in winter, and compute the areas of draught deflectors
本文針對自然通風逆流式冷卻塔冬季運行時的防凍處理，及預防結冰所應採取的措施進行研究和計算，提出以增加或減少擋風板的高度來控制出塔水溫的方法，並對其進行計算分析。 -
To this area precipitation materials for many years, evaporate materials, surface flow materials, hydrometeorological materials, hydrogeological materials carry on exhaustive analysis, have analysed the state of water resource of the sand district, proceed from the heat of the earth ' s surface is balanced, water yield balanced basic theories, combine the amount of regional water resource set up of the materials, such as scene, hydrology, soil of the sand district, etc. and estimate models, have calculated the surface water, groundwater of this area, has carried on models to examine according to the real data, and has predicted to the state of water resource under different climate change scenes of future that analyse. have put forward the scheme that the water resource in this area utilized rationally, use the non - linear motive force model to predict the precipitation, utilize the materials of actual observation, the natural supply amount of calculating out groundwater of sand ground of balanced principle of the amount of water used at the same time, and can exploiting amount predict to groundwater, district of sand,
本文以寧夏半乾旱地區鹽池縣沙地水資源為研究對象，對該地區多年降水資料、蒸發資料、徑流資料、水文氣象資料、水文地質資料進行了詳盡的分析，分析了沙區的水資源狀況，從地表熱量平衡、水量平衡的基本理論出發，結合沙區的氣象、水文、土壤等資料建立了區域水資源量估算模型，計算了該地區的地表水、地下水，根據實際資料進行了模型檢驗，並對未來不同氣候變化情景下的水資源狀況進行了預測分析，提出了該地區水資源合理利用的方案，運用非線性動力模型對降水量進行預測，同時利用實際觀測資料，運用水量平衡原理計算出沙地地下水的天然補給量，並對沙區地下水可開采量進行預測。 -
A two - dimensional double diffusive laminar natural convection in rectangular enclosure is detailed analyzed. the results show that when the thermal and solutal buoyancies aid each other, the airflow consists of one main cellular structure and is steady, regardless of the relative strength variation between the heat and pollutant sources. there are multiple flow structures, however, according to the relative strength when the buoyancies opposing each other
模擬結果表明雙擴散自然對流系統的空氣流動與傳熱傳質特性完全是由離散熱源與污染源浮升力之間的相互作用關系訣定的：當離散熱源與污染源浮升力協同作用時，自然對流呈比較穩定的單一流動結構；而當熱源與污染源浮升力對抗作用時，自然對流系統隨它們之間強度變化呈現出多種流動狀態。 -
Kunming belongs to the low latitude plateau mountainous country monsoon climate, because of locating in the western region of yungui plateau, the degree of latitude is low, the elevation is high, there are the wumeng mountains to be as the natural screen in the north, separating the cold air to go down south, the whole area is subjected to influence that come from southwest and warm moisture of indian ocean s flow more, adding there are the plateau lakes to regulate degree of humidity, becoming the four seasons of " summer have no intense heat, winter have no strict and cold ", such as pleasant weather of the spring
昆明屬低緯高原山地季風氣候，由於地處雲貴高原西部，緯度低，海拔高，北部有烏蒙山等群山作為天然屏障，阻隔南下的冷空氣，全區多受來自印度洋西南暖濕氣流的影響，加之有高原湖泊滇池陽宗海調節溫濕度，形成「夏無酷暑，冬無嚴寒」四季如春的宜人氣候。年平均氣溫為14 . 5 ，最熱月平均氣溫19 . 7 ，最冷月平均氣溫7 . 5 ，年平均日照時數為2400多小時。 -
For tianjin olympic center stadium project, parameters determination of a natural lake used as cooling pond and the layout plan of the lake were introduced, including the flow scheme of recirculating cooling water system, calculation of heat released from cooling pond, engineering arrangement for the lake, and the lake water treatment, etc
摘要結合天津奧林匹克中心體育場工程，介紹了利用天然湖作為冷卻池的參數確定及湖平面設計，具體包括冷卻循環水系統流程、冷卻池排熱量計算、冷卻湖的工程布置、湖水水質處理等。 -
Terrestrial heat flow - an important natural factor influencing evolution of ecological system and environment in the western china
影響西部環境與生態演變的重要自然因素 -
Theoretical study on the natural circulation precooling involves complicated two - phase fluid flow and heat transfer. the paper discusses several typical analyzing methods concerned with precooling, and also introduces a new analyzing method based on the comparison with the natural circulation boiler
自然循環預冷法的理論分析涉及到單相、兩相流的流動和傳熱問題，對此不少文獻都有所論述，本文對其中一些具有代表性的方法進行了討論。 -
The characteristic of combined heat and mass transfer by natural convection has been the focus of researches for a long time. numerical analysis is conducted for combined heat transfer and mass transfer by natural convection on inclined surface. effects of the inclination angle and the ratio of buoyancies due to heat diffusion and mass diffusion on fluid flow and heat and mass transfer characteristics have been investigated for pr = 0. 7 and sc = 0. 05 - 5. 0
本文採用數值計算方法研究了傾斜平面上的傳熱傳質復合自然對流，求解了動量、能量及質量的完整方程，考察了熱質擴散共存時傾斜平面上的流動和傳熱特性，著重分析了熱浮力及物質擴散浮力之比b和傾斜角度對流體流動和傳熱傳質特性的影響。 -
Direct numerical simulation of turbulent flow and heat transfer in square duct with steady natural convection in cross section
具有截面自然對流通道內湍流換熱的直接數值模擬
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