瞬時熱傳遞 的英文怎麼說
中文拼音 [shùnshírèzhuàndì]
瞬時熱傳遞
英文
transient heat flow-
The formulation for the flow model is given using the finite element / control volume ( fe / cv ) technique based on darcy ' s law of creeping flow through a porous media. the heat transfer model is based on the two - dimensional, transient heat conduction equation, including heat generation. the cure kinetics model is based on kamal ' s model, and the degree of the resin cure as a function of temperature and time
樹脂流動階段的模擬是根據牛頓流體在多孔介質中的滲流理論，應用darcy定律並使用有限元/控制體技術建立起來的；熱傳遞模型是一個二維瞬態熱傳導方程，考慮樹脂反應放熱；樹脂的固化模型利用了kamal提出的固化動力學方程，將固化度取為時間和溫度的函數。Firstly, wall ’ s transfer matrix is deduced by laplace transformation based on 3r2c thermal network model. secondly, frequency response of transfer matrix is calculated. thirdly, we make the frequency response of transfer matrix of stimulation model equate the theoretical frequency response of wall transient heat conduction by applying appropriate identification algorithm, from which we can obtain every polynomial ’ s coefficient of model transfer function, then each parameter of resistance and capacitance is calculated by appropriate optimization algorithm
首先，根據模擬熱流網路模型用拉普拉斯變換推出墻體的傳遞矩陣;然後，計算傳遞矩陣的頻率響應;最後，採用頻域回歸方法求出模型傳遞函數各次項的系數，進而通過一定的優化演算法確定模型的各個熱阻、熱容參數，使通過模型建立的多項式s -傳遞函數與墻體瞬時傳熱的理論超越s -傳遞函數完全等價。The theoretical s - transfer function of ground - coupled envelope is deduced by laplace transformation. a simple polynomial s - transfer function is estimated from the theoretical frequency response of the ground - coupled envelope by frequency domain regression method, then we can calculate transient heat conduction through the ground - coupled envelope. it provides a novel idea to calculate the transient heat transfer from ground - coupled envelope more simply and efficiently
用頻域回歸方法求出觸地結構多項式s -傳遞函數，通過實例驗證了多項式s -傳遞函數與理論傳遞函數的等價性，並計算出觸地圍護結構的反應系數、導熱z傳遞函數系數和地面瞬時熱流，這就為更簡單、高效地計算觸地結構動態傳熱提供了一種新的思路。It will present a new method - frequency - domain regression ( fdr ) method based on system identification theory for calculating transient heat flux through multi - layer walls. first, the frequency characteristics of the total transmission matrix are calculated within the frequency range concerned. then, a simple polynomial 5 - transfer function is yielded from the theoretical frequency characteristics for internal, cross and external heat conduction by applying appropriate identification algorithm, respectively
首先在所關心的頻域范圍內計算出總的傳遞矩陣的頻率響應，然後採用適應的辨識演算法從墻體不穩定傳熱的理論頻率響應中構造出一個簡單的多項式s -傳遞函數，該多項式s -傳遞函數與墻體瞬時傳熱的理論的超越s -傳遞函數完全等價。分享友人