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Space Layout Optimization for Natural Ventilation Using Machine Learning Techniques
Space Layout Optimization for Natural Ventilation Using Machine Learning Techniques
Space Layout Optimization for Natural Ventilation Using Machine Learning Techniques

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20250211150940
ISBN  
9798382775203
DDC  
620
저자명  
Wang, Xiaoshi.
서명/저자  
Space Layout Optimization for Natural Ventilation Using Machine Learning Techniques
발행사항  
[Sl] : Harvard University, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
178 p
주기사항  
Source: Dissertations Abstracts International, Volume: 85-12, Section: B.
주기사항  
Advisor: Malkawi, Ali M.
학위논문주기  
Thesis (Ph.D.)--Harvard University, 2024.
초록/해제  
요약Indoor airflow distribution holds significant importance in evaluating the natural ventilation conditions of buildings. Conventionally, Computational Fluid Dynamics (CFD) is used for evaluating airflow patterns in a multizone space layout during the early design phase. While CFD can provide accurate airflow information, its adoption requires substantial computational resources and considerable running time, which limits its application in the fast pace of early-stage architectural design. With the recent rapid advancements in machine learning techniques, data-driven surrogate models have emerged as a potential alternative to CFD solvers for fast prediction of flow fields. While delivering promising performance on generic boundary geometries, machine learning approaches on multizone indoor airflow are less explored due to its inherent complexity and limited availability of high-quality datasets.This dissertation introduces a new machine learning framework designed for the fast prediction of CFD-generated airflow fields in multizone space layouts and the optimization of space layouts based on airflow distribution. The framework consists of three components: a data generation module, an ensemble learning framework, and a model predictive optimizer. The data generation module randomly generates multizone space layouts and populates their 3D flow patterns using conventional CFD techniques. The ensemble learning framework leverages multiple machine learning models to collectively predict multizone airflow fields, surpassing standard machine learning approaches in terms of accuracy. The framework also demonstrates robust functionality by incorporating physics-informed loss functions and exhibits adaptability for predicting more complex scenarios beyond the training dataset. The optimizer uses the framework as a predictive model to minimize the portion of undesired indoor air velocity with optimal window positions. Furthermore, a design tool is implemented using the methods presented in this research to facilitate early-stage natural ventilation design.
일반주제명  
Fluid mechanics
키워드  
Architectural design optimization
키워드  
Computational Fluid Dynamics
키워드  
Indoor airflow pattern
키워드  
Machine learning
키워드  
Multizone space layout
키워드  
Natural ventilation
기타저자  
Harvard University Architecture Landscape Architecture and Urban Planning
기본자료저록  
Dissertations Abstracts International. 85-12B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798382775203
■035    ▼a(MiAaPQ)AAI30991732
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620
■1001  ▼aWang,  Xiaoshi.▼0(orcid)0009-0002-7171-9517
■24510▼aSpace  Layout  Optimization  for  Natural  Ventilation  Using  Machine  Learning  Techniques
■260    ▼a[Sl]▼bHarvard  University▼c2024
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2024
■300    ▼a178  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-12,  Section:  B.
■500    ▼aAdvisor:  Malkawi,  Ali  M.
■5021  ▼aThesis  (Ph.D.)--Harvard  University,  2024.
■520    ▼aIndoor  airflow  distribution  holds  significant  importance  in  evaluating  the  natural  ventilation  conditions  of  buildings.  Conventionally,  Computational  Fluid  Dynamics  (CFD)  is  used  for  evaluating  airflow  patterns  in  a  multizone  space  layout  during  the  early  design  phase.  While  CFD  can  provide  accurate  airflow  information,  its  adoption  requires  substantial  computational  resources  and  considerable  running  time,  which  limits  its  application  in  the  fast  pace  of  early-stage  architectural  design.  With  the  recent  rapid  advancements  in  machine  learning  techniques,  data-driven  surrogate  models  have  emerged  as  a  potential  alternative  to  CFD  solvers  for  fast  prediction  of  flow  fields.  While  delivering  promising  performance  on  generic  boundary  geometries,  machine  learning  approaches  on  multizone  indoor  airflow  are  less  explored  due  to  its  inherent  complexity  and  limited  availability  of  high-quality  datasets.This  dissertation  introduces  a  new  machine  learning  framework  designed  for  the  fast  prediction  of  CFD-generated  airflow  fields  in  multizone  space  layouts  and  the  optimization  of  space  layouts  based  on  airflow  distribution.  The  framework  consists  of  three  components:  a  data  generation  module,  an  ensemble  learning  framework,  and  a  model  predictive  optimizer.  The  data  generation  module  randomly  generates  multizone  space  layouts  and  populates  their  3D  flow  patterns  using  conventional  CFD  techniques.  The  ensemble  learning  framework  leverages  multiple  machine  learning  models  to  collectively  predict  multizone  airflow  fields,  surpassing  standard  machine  learning  approaches  in  terms  of  accuracy.  The  framework  also  demonstrates  robust  functionality  by  incorporating  physics-informed  loss  functions  and  exhibits adaptability  for  predicting  more  complex  scenarios  beyond  the  training  dataset.  The  optimizer  uses  the  framework  as  a  predictive  model  to  minimize  the  portion  of  undesired  indoor  air  velocity  with  optimal  window  positions.  Furthermore,  a  design  tool  is  implemented  using  the  methods  presented  in  this  research  to  facilitate  early-stage  natural  ventilation  design.
■590    ▼aSchool  code:  0084.
■650  4▼aFluid  mechanics
■653    ▼aArchitectural  design  optimization
■653    ▼aComputational  Fluid  Dynamics
■653    ▼aIndoor  airflow  pattern
■653    ▼aMachine  learning
■653    ▼aMultizone  space  layout
■653    ▼aNatural  ventilation
■690    ▼a0729
■690    ▼a0800
■690    ▼a0204
■71020▼aHarvard  University▼bArchitecture,  Landscape  Architecture  and  Urban  Planning.
■7730  ▼tDissertations  Abstracts  International▼g85-12B.
■790    ▼a0084
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160238▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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