基于Comsol的微波溫度場仿真一實(shí)驗(yàn)?zāi)康?掌握微波溫度場仿真的基本原理。.掌握微波溫度場仿真的基本步驟：選擇物理場、幾何建模、設(shè)定分析條件、網(wǎng)格劃分、求解、和后處理。.基于Comsol實(shí)現(xiàn)微波消融儀的溫度場仿真。二實(shí)驗(yàn)要求1.得到微波溫度場的分步處理結(jié)果和溫度場仿真結(jié)果，具體包括：所選物理場、幾何模型的形狀和參數(shù)(包括微波天線和肝臟的參數(shù)設(shè)置)、后處理結(jié)果(包括繪制出直線r=1.5e-3上的SAR分布(emw/rho_blood)、評(píng)估肝臟吸收功率的效率、評(píng)估10分鐘時(shí)的中心溫度(微波發(fā)射點(diǎn))、以及繪制(0.004,0.01)、(0.008,0.01)、(0.012,0.01)點(diǎn)處溫度隨時(shí)間的變化圖以及壞死組織比率曲線)。

0,000.0750.070.0650.060.0550.050.0450.040.0350.030.0250.020,0150.010.005-0.01 00.010.02 0.03 0.040 0,01 0.020.03 0.04 0.050 0,01 0.020.03 0.04 0.050.080.075-0.07"0.065"0.06-0.055"0.05-0.045"0.04-0.035"0.03~0.025-0.02-0.015"o.or0.005"0",-0.02-'-0.01▲5.31▲5.310.080.0750.070.0650.060.0550.050.0450.040.0350.030.0250.020.0150.010.0050■0.01 00.01 0.02 0.03 0.04▼-0.43poo_qo￡、poo_qo￡、qo?ME①GraphicsQq⑥圖皿匡曲mLineGraph;emw.Qh/rho-blood(W/kg) U3000280026002400220020001800160014001200100080060040020000 0,01 0.02 0.03 0.04 0.05 0.06 0.07 0.08Arclength-0.01 00.01 0.02 0.03 0.04-0.01 00.01 0.02 0.03 0.04Time=10minSurface：Fractionofnecrotictissue0.080.0750.070.0S50.060.0550.050.0450.040.0350.D30.0250.020.0150.01口■003此圖繪制出沿平行于天線的線并且距天線軸線2.5mm距離處的比吸收率(SAR)。此結(jié)果與參考文獻(xiàn)具有良好的一致性。L>PointGraph：Temperature(K)3203183160d良囹迎尾?亞PointGraph：Fractionofnecrotictissue

0q/囹心▼的mL3Time=10minContour：Temperature(K)L30.080.0750.070.080.0750.070.0650.060.0550.050.0450.040.0350.030.0250.020.0150.010.0050▲374i374-371368365361358-355-3