沸騰現象的產生及過程狀態
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一、 沸騰現象的產生及過程狀態
Produce and process state, boiling phenomena
沸騰傳熱是以氣泡形式進行的,氣泡的產生、形成、生長以及運動方式,便是影響沸騰傳熱的重要機制,在此將這些過程稱為氣泡的行為與性狀(behavior),因此研究氣泡的行為與性狀是研究沸騰的首要任務,而要研究氣泡的行為與性狀必須使用氣泡的熱力學和氣泡的動力學這二個基本理論,只有在這二大基本原理的支撐下才能進一步研究談論靜止液體中的沸騰(容積沸騰)和流動液體中的沸騰((流動沸騰)、沸騰的臨界現象及其前后的傳熱特性。本節著重討論重力場作用下來和水蒸氣的相變傳熱基理。
The boiling heat transfer is carried out in the form of gas bubbles, bubbles, the formation, growth and movement, is an important mechanism of boiling heat transfer, the process is called behavior and properties of bubble (behavior), behavior and character so the bubble is the primary task of boiling, the two basic theory dynamics and thermodynamics and bubble to behavior and the character of bubble must use the bubble, only in the two basic principles under the support of further research about boiling in static liquid (volume boiling) boiling and flow in the liquid ((the flow boiling heat transfer characteristics of critical phenomena), boiling and before. This section discusses the effect of gravity field and water vapor phase change heat transfer mechanism.
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