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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
- Machine learning
- 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
008250123s2024 us c eng d■001000017160238
■00520250211150940
■006m o d
■007cr#unu||||||||
■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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