2016年美赛论文

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1、Team#32150page1ofContentsⅠIntroduction……………………………………………………………………….11.1ProblemBackground………………………………………………...11.2OurWork………………………………………………………….....2ⅡGeneralAssumptions.............................................................................................3ⅢSymbolDescription……………

2、………………………………………………...3ⅣBathtubWaterTemperatureModel…………………………………………..44.1PrincipleandWayofThinking………………………………………44.2Thecalculationofhotwatertemperatureandwaterflowrate………54.3Theresultsofthemodel……………………………………………ⅤThetemperaturegradientmodel……………………………………………….95.1PrincipleandWayofThi

3、nking……...……………………………...105.2Derivationoftheformulaoftemperaturedistribution……………..115.3Theresultsofthemodel…………………………………………….ⅥImprovedModel………………………………………………………………..6.1PrincipleandIdeas6.2ModelImplementationandResultsⅦTheInfluenceofOtherFactors…………………………………………….....117.1People’smov

4、ement7.2ModelImplementationandResults7.3InterventionofbubblebathⅧSensitivityAnalysis……………………………………………………………228.1Impactofthetemperatureofheatsource8.2ImpactoftheradiusofthestabletemperaturefieldⅨConclusion……………………….…………………………………………….259.1Strengths…………………………………………………………..269.2Weakness

5、es………………………………………………………..27Team#32150page1of9.3FutureWork……………………………………………………….28LettertotheUsers………………………………………..........................................30References…………………………………………………………………………...31ⅠIntroduction1.1.ProblemBackgroundTakingahotbathisconsideredtobeoneofthesecretsofliv

6、inglonger.Itcanmakeusrelaxed,improvebloodcirculationandenhancetheimmunityabilitywhichcontributestoourhealthalot.Definitely,ifthetemperatureofwateristoohigh,itwillnotonlyhurtourskin,butalsoexpandthebloodvesselsonthesurfaceoftheskin,increasethebodysurface’bloodflowanddecreasethebloods

7、uppliedtoheartandbrain,whichcanleadtohypoxiaandfainting.Meanwhile,weshouldn’ttakeabathforalongtime,especiallychildrenshouldtakemorecareofit.Thetimetheytakeabathshouldn’tmorethanhalfanhour.Takealongbathwillmakeusfeeltiredandleadtoheadache.Sotheexpertsuggeststhatthebesttemperatureforb

8、athis,anditisthebes