airpak教程学习教程.pptx

A-1Airpak Ventilation Modeling Software通风设计软件通风设计软件Simplifies the design and analysis of ventilation systems 简化通风系统的设计和分析 Accurate,quick,and easy-to-use design tool that empowers designers and professionals,without extensive backgrounds in computer applications,to utilize the powers of advanced computational fluid dynamics(CFD)tools精确，快速，易学，设计师不需要有很深的计算机应用背景，就能够使用这一CFD工具Optimize your designs or pinpoint problems based on accurate predictions of airflow patterns,thermal conditions,comfort conditions,and/or contamination control effectiveness 优化设计，查明问题Obtain the most accurate solution in the shortest amount of time and in the easiest manner possible在最短的时间内，用最简单的方式，获得最精确的结果在最短的时间内，用最简单的方式，获得最精确的结果第1页/共32页第一页，编辑于星期五：九点 五十三分。A-2Targeted Airflow Applications 应用应用Commercial/residential ventilation 住宅通风Fume hood design 排烟罩设计Telecommunication rooms 电讯室设计Clean rooms 净化间设计Contamination control 污染控制Industrial air conditioning 工业空调Industrial ventilation 工业通风Industrial hygiene 工业卫生Occupational health and safety职业健康和保险External building flows 建筑外部绕流Transportation ventilation 运输通风Mine ventilation 矿井通风矿井通风Fire and smoke management 烟火管理烟火管理Educational facilities 教育设施教育设施Medical facilities 医疗设施医疗设施Animal and plant environments动动植物生存环境植物生存环境Kitchen ventilation 厨房通风厨房通风Restaurants and bars 餐厅和酒吧餐厅和酒吧Power plant ventilation 电站通风电站通风Enclosed vehicular facilities 封闭车辆设施封闭车辆设施Stadiums,arenas,and places of assembly 体育场，竞技场，总装厂房体育场，竞技场，总装厂房第2页/共32页第二页，编辑于星期五：九点 五十三分。A-3Airpak Meets Demands of HVAC Industry面向面向HVAC行业行业Ease of Use 使用简便mouse-driven graphical user-interfaceobject-oriented model buildingautomated meshingwell-chosen default parameterspowerful post-processingFocused on HVAC applications 面向HVAC应用building blocks include fans,vents,people,hoods,filterspost-processing of thermal comfort and contamination parametersAccurate and Fast 准确，快速body-fitted mesh captures real geometry for simulationsbased on well-proven,efficient,and robust unstructured solverparallel computing cuts turnaround timeAirpak streamlines the process of modeling airflow第3页/共32页第三页，编辑于星期五：九点 五十三分。A-4Airpak Graphical User Interface第4页/共32页第四页，编辑于星期五：九点 五十三分。A-5Airpak Building BlocksObject-based model building with pre-defined objects 用预先定义好的物体建模blocks of various shapes and sizeshuman formsfanshoodswalls/partitionsopeningssourcesresistancesLibrary functions available to create and store groups of objects用库函数可以产生和 存储物体组prismsellipsoidspolygonscylindersSeated&standing peoplehoods第5页/共32页第五页，编辑于星期五：九点 五十三分。A-6Airpak Modeling FeaturesSteady or transient analysis 稳态，瞬态分析Laminar or turbulent flow 层流，湍流Transport of multiple species 多种组分Forced,natural,or mixed convection heat transfer 强迫，自然，混合对流换热Surface-to-surface radiation 辐射Conduction in solids 固体传导Sources for velocity,energy,&species 速度，能量，组分源第6页/共32页第六页，编辑于星期五：九点 五十三分。A-7Airpak Automated Meshing Capabilities自动化网格能力自动化网格能力Fully-automatic unstructured meshing handles easy as well as complex geometries 完全自动非结构化网格生成True-geometry representation(no stair-stepped approximations)真实几何Hexahedra,tetrahedra,pentahedra,and mixed element mesh types第7页/共32页第七页，编辑于星期五：九点 五十三分。A-8Airpak Unstructured Meshing非结构化网格非结构化网格Use fewer cells than what a structured mesh requires for complex problems Unstructured tetrahedral mesh of a collegiate ice rink快餐吧进气孔冰记分牌灯光看台AHU第8页/共32页第八页，编辑于星期五：九点 五十三分。A-9Airpak Reporting and Display Options后处理后处理Contour levels 等值面Velocity vectors 速度向量Particle traces 粒子追踪Animations 动画Point reporting 点报告Variation plots 变量图Summary reports 总结报告Display of IAQ&thermal comfort post-processing parameters:IAQ和舒适度后处理参数：relative humidity 相对湿度PMV&PPD mean radiant temperature 平均辐射温度mean age of air 平均空气滞留时间第9页/共32页第九页，编辑于星期五：九点 五十三分。A-10Thermal Comfort Post-Processing舒适度后处理舒适度后处理ISO 7730 used to calculate Predicted Mean Vote(PMV)and Predicted Percentage Dissatisfied(PPD)throughout the modeled roomExplore what-if cases by overriding computed values for RH,MRT,air temperature,or air velocitySelect metabolic rate and clothing values from tablesReport min,max,average,and standard deviation第10页/共32页第十页，编辑于星期五：九点 五十三分。A-11Parametric Models 参数化建模参数化建模Parametric capabilities allow you to work more efficiently with automated computations of numerous cases 参数化建模能够提高您的工作效率Can specify parameters for geometry,properties and/or boundary conditions 参数可以是几何，特性，边界条件参数可以是几何，特性，边界条件User chooses trials from available matrix 用户根据不同的参数选择计算工况用户根据不同的参数选择计算工况第11页/共32页第十一页，编辑于星期五：九点 五十三分。A-12Spreadsheet Model AdjustmentsEasy modification of all model parameters and boundary conditions using spreadsheet 用电子表格可以很容易修改模型参数和边界条件Import/export capability with tab-separated format可以进行输入/输出第12页/共32页第十二页，编辑于星期五：九点 五十三分。A-13Animations Bring the Flow to LifeDisplay animated particle traces Display animation of transient processes for any post-processing objectUse a separate screen capture utility to save Airpak animations or any other display activity in AVI format (pc only)Compose individual frames for animated GIF format (unix or pc web browsers)AVI animation of particle traces from supply diffuser in a partitioned office第13页/共32页第十三页，编辑于星期五：九点 五十三分。A-14Examples第14页/共32页第十四页，编辑于星期五：九点 五十三分。A-15Cooling Ventilation:Negatively Buoyant JetPredicting cold air distribution at low ventilation rates,designers visualize jet deflection and determine impact on mixing and thermal comfortParticle Traces Colored by Velocity MagnitudeContours of PMV第15页/共32页第十五页，编辑于星期五：九点 五十三分。A-16Ventilation of a Partitioned OfficeParticle traces colored by mean age of air show sharp deflection of cold air as it exits elevated side-wall supply diffuserContours of mean age of air show difference in air freshness including stale stagnant regions in corners and behind partitionDetermine the best ventilation system design for the planned use of the facility第16页/共32页第十六页，编辑于星期五：九点 五十三分。A-17IAQ and Comfort in a Conference RoomFlow patterns within the room at table level contain several low-velocity swirling eddies as shown by the velocity vectors Circular ceiling diffuser第17页/共32页第十七页，编辑于星期五：九点 五十三分。A-18IAQ and Comfort in a Conference RoomContours of mean age of air show that meeting participants are seated where the air is generally the least freshContours of PMV show cold air from supply cools the perimeter regions of the room while the occupied space is relatively more comfortable第18页/共32页第十八页，编辑于星期五：九点 五十三分。A-19Laboratory Ventilation:Local-Exhaust SystemUse Airpak to determine:Effectiveness of local-exhaust systemBreathing zone integrityInteraction of lab ventilation with local-exhaust system第19页/共32页第十九页，编辑于星期五：九点 五十三分。A-20Laboratory Ventilation:Local-Exhaust SystemLaboratory room ventilation and obstruction of the worker himself may reduce the efficacy of the local-exhaust system第20页/共32页第二十页，编辑于星期五：九点 五十三分。A-21Industrial Ventilation:Paint Spray BoothOverhead supply ventilation with central floor exhaust designed to maintain safe and healthy conditionsPaint fume concentration levels and velocity vectors第21页/共32页第二十一页，编辑于星期五：九点 五十三分。A-22Industrial Ventilation:Paint Spray BoothUse Airpak to:Assess whether the worker is safe without a maskAssess margins to fire hazard conditionsDetermine waiting period required before safe entry by unprotected workers第22页/共32页第二十二页，编辑于星期五：九点 五十三分。A-23Occupational Safety:VOC Emissions from a CopierParticle traces of copier VOC emissions colored by concentration level fall behind the copier and then circulate through the room before exiting the exhaustCopier room geometry and computational mesh第23页/共32页第二十三页，编辑于星期五：九点 五十三分。A-24Building Air Intake and Exhaust DesignPlume particle traces colored by concentration level show the dilution and trajectory of the contaminant plumes while surfaces are colored by surface pressure magnitude第24页/共32页第二十四页，编辑于星期五：九点 五十三分。A-25Building Air Intake and Exhaust DesignVisualize complex airflow patterns that develop between buildings and use that information when determining where to place intakes and exhausts第25页/共32页第二十五页，编辑于星期五：九点 五十三分。A-26Airpak 2.0的新特点第26页/共32页第二十六页，编辑于星期五：九点 五十三分。A-27 MCAD 输入-IGES文件（包括面和线）能够直接从CAD文件输入到Airpak-不必要的面可以进行修剪、填充或删除-Airpak的模型可以直接从面生成第27页/共32页第二十七页，编辑于星期五：九点 五十三分。A-28 Modeling（建模）-增加了一种新的radiation 模型，discrete ordinates 无须求角系数，但求解时间长-增加了indoor zero-equation model 和RNG k-model-理想气体方程-开口（opening）建模提供了剖面情况-后处理切面参数可以保存并重新使用-提高了薄板导热模型能力。目前的限制是薄板不能接触network blocks，不能采用并行计算-求解时提供了节点内部插值功能。不同网格划分也可进行restart-水蒸气边界条件可以通过水气含量或相对湿度描述-污染边界条件可以通过ppmv 或浓度描述-薄板壁可行第28页/共32页第二十八页，编辑于星期五：九点 五十三分。A-29 Design Capabilities（设计能力）-参数化功能的提高，可以根据licenses数，用于多个jobs同时分析-总结报告的格式可以在求解前预先定义，Airpak将在求解结束时自动完成报告 Postprocessing（后处理）-单个点上变量的情况可以用鼠标拖动来显示-单个点对象可以作为监视点、后处理对象和点报告-后处理结果可以直接存成MPEG,AVI,GIFs&FLI movies第29页/共32页第二十九页，编辑于星期五：九点 五十三分。A-30 Macros:大气边界层(atmospheric)太阳幅射(solar flux)散流器(diffuser)Nozzle Slot Valve Displacement Square ceiling Round ceiling Vortex ceiling Grille第30页/共32页第三十页，编辑于星期五：九点 五十三分。A-31Impractical to model details of air inlet diffusersMacros use simplified diffuser boundary conditions based on ASHRAE RP-1009 research that evaluated momentum and box methods for simplified diffuser BCs第31页/共32页第三十一页，编辑于星期五：九点 五十三分。A-32感谢您的观看。第32页/共32页第三十二页，编辑于星期五：九点 五十三分。