Computational Building Physics Using COMSOL
-
Upload
ykhamidi3889 -
Category
Documents
-
view
220 -
download
0
Transcript of Computational Building Physics Using COMSOL
-
8/2/2019 Computational Building Physics Using COMSOL
1/48
Computational Building Physics
using COMSOL
Research, Education & Practice
dr.ir. Jos van Schijndel
-
8/2/2019 Computational Building Physics Using COMSOL
2/48
PAGE 110-11-2011
User since 1998(?)
-
8/2/2019 Computational Building Physics Using COMSOL
3/48
PAGE 210-11-2011
Contents
1.Introduction Complexity and scale levels
My computational laboratory
2.Combined heat, moisture, air, stress models for(building) constructions
3.From Material [~mm] to EU [~Mm] scale level
4.Conclusions
-
8/2/2019 Computational Building Physics Using COMSOL
4/48
PAGE 310-11-2011
What is a Complex system?
Where are Complex systems in the builtenvironment?
1. IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
5/48
PAGE 410-11-2011
The whole is greater than the sum of the individual parts
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
6/48
PAGE 510-11-2011
Butterfly effect: Small parameter variations may producelarge variations in the long term behavior of the system.
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
7/48PAGE 610-11-2011
Where are the dynamic complex systems at thebuilt environment ?
Everywhere and on several scales
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
8/48PAGE 710-11-2011
Material ~ mm Present dynamic complex systems:
Material Physics
Durability
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
9/48PAGE 810-11-2011
Building ~ 10 m Present dynamic complex systems:
BuildingPhysics
Indoor climateBuilding systems
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
10/48PAGE 910-11-2011
Urban Area ~ km Present dynamic complex systems:
UrbanPhysics
Urban ClimateUrban district systems
IntroductionComplexity and Scale levels
-
8/2/2019 Computational Building Physics Using COMSOL
11/48
-
8/2/2019 Computational Building Physics Using COMSOL
12/48
PAGE 1110-11-2011
Multi BuildingsHAMBase
MatLab
Multi DetailsPDE
Comsol
Multi Systems & ControlODE
SimuLink
IntroductionMy computational laboratory
-
8/2/2019 Computational Building Physics Using COMSOL
13/48
PAGE 1210-11-2011
Tools Buildings modeling physics: HAMBasescientific software: MatLab
Anne Frank House
Simulation and validation
-
8/2/2019 Computational Building Physics Using COMSOL
14/48
PAGE 1310-11-2011
Tools Detail modeling physics: PDEsscientific software: Comsol
3D Moisture
Hunting Logde St. Hubertus
-
8/2/2019 Computational Building Physics Using COMSOL
15/48
-
8/2/2019 Computational Building Physics Using COMSOL
16/48
PAGE 1510-11-2011
http://archbps1.campus.tue.nl/bpswiki/index.php/Hamlab
IntroductionMy computational laboratory
-
8/2/2019 Computational Building Physics Using COMSOL
17/48
PAGE 1610-11-2011
Computational Building PhysicsResearch Matrix
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
-
8/2/2019 Computational Building Physics Using COMSOL
18/48
PAGE 1710-11-2011
Computational Building PhysicsHeat
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
-
8/2/2019 Computational Building Physics Using COMSOL
19/48
PAGE 1810-11-2011
Application 1: Heat 3D
-
8/2/2019 Computational Building Physics Using COMSOL
20/48
PAGE 1910-11-2011
Computational Building PhysicsHeat+Moisture
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
-
8/2/2019 Computational Building Physics Using COMSOL
21/48
PAGE 2010-11-2011
Application 2: Heat and moisture transportPDEs
)(
)(
2221
1211
LPcKTKt
LPcC
LPcKTKt
TC
LPc
T
,
,
,
)log(
21
22
12
11
10
T
PsatK
RT
MPsat
LPc
Pc
LPc
PcKK
LPc
Pc
Pc
w
C
RT
MPsat
LPc
PclK
K
cC
PcLPc
p
a
wp
LPc
a
wplv
T
Potential T, LPc
PDE coefficients formulation
Material properties
function of T, LPc
-
8/2/2019 Computational Building Physics Using COMSOL
22/48
PAGE 2110-11-2011
Calculating PDE coefficientsusing material properties, method 1/2
)(
)(
2221
1211
LPcKTKt
LPcC
LPcKTKt
TC
LPc
T
PDE coefficients lookup
tables calculated in MatLabusing:
heat conductioncoefficients
specific heat
density
liquid permeability
moisture retention curve
vapour permeability
-
8/2/2019 Computational Building Physics Using COMSOL
23/48
PAGE 2210-11-2011
)(
)(
2221
1211
LPcKTKt
LPcC
LPcKTKt
TC
LPc
T
Calculating PDE coefficientsusing material properties, result 2/2
-
8/2/2019 Computational Building Physics Using COMSOL
24/48
PAGE 2310-11-2011
VerificationHAMSTAD Benchmark no 1
)(
)()(
ppg
pplTThq
i
ilvii
0
)(
g
TThq ee
-
8/2/2019 Computational Building Physics Using COMSOL
25/48
PAGE 2410-11-2011
VerificationHeat & Moisture
-
8/2/2019 Computational Building Physics Using COMSOL
26/48
PAGE 2510-11-2011
VerificationMoisture
LPc based model RH based model
Thanks to: Natalie Williams Portal (visit today, 4:00-5:30, Silchersaal)
-
8/2/2019 Computational Building Physics Using COMSOL
27/48
PAGE 2610-11-2011
Computational Building PhysicsHeat+Moisture+Air
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
-
8/2/2019 Computational Building Physics Using COMSOL
28/48
PAGE 2710-11-2011
Application 3HAM modelingInfluence of micro air movement
Inside
Outside
a b
-
8/2/2019 Computational Building Physics Using COMSOL
29/48
PAGE 2810-11-2011
HAM modelingPhysics
0)(:
;0)(:
0)(:
vv
v
pp
ppDt
pMoisture
PKPKt
PAir
TCTt
TCHeat
u
u
u
0)(:);()(::
0:;::
0)(:);()(::
inf
0
inf
vvvv pDInsulationpppDFlux
PKInsulationPPPressure
TInsulationTThTFlux
nnMoisture
nAir
nnHeat
PDEs
Boundary values
-
8/2/2019 Computational Building Physics Using COMSOL
30/48
PAGE 2910-11-2011
HAM modelingSimulation of Relative Humidity
Air velocity
= 0
Air velocity
+10 m /s
Air velocity
-10 m /s
-
8/2/2019 Computational Building Physics Using COMSOL
31/48
PAGE 3010-11-2011
HAM modelingInfluence of micro air movement
a b
Summary
A (so far immeasurable) low air movement of order 10-5
m/s seems to have significant impact on the RH
-
8/2/2019 Computational Building Physics Using COMSOL
32/48
PAGE 3110-11-2011
Computational Building PhysicsHeat+Moisture+Air+Stress
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
-
8/2/2019 Computational Building Physics Using COMSOL
33/48
PAGE 3210-11-2011Thanks to: Zara Huijbregts (visit today, 4:00-5:30, Silchersaal)
Application 4HAMS modelingIncluding stress and strain
-
8/2/2019 Computational Building Physics Using COMSOL
34/48
PAGE 3310-11-2011Thanks to: Zara Huijbregts (visit today, 4:00-5:30, Silchersaal)
Application 4HAMS modelingIncluding stress and strain
-
8/2/2019 Computational Building Physics Using COMSOL
35/48
PAGE 3410-11-2011
Application 4HAMS modelingIncluding stress and strain
Thanks to: Zara Huijbregts (visit today, 4:00-5:30, Silchersaal)
-
8/2/2019 Computational Building Physics Using COMSOL
36/48
PAGE 3510-11-2011Thanks to: Zara Huijbregts (visit today, 4:00-5:30, Silchersaal)
Application 4HAMS modelingIncluding stress and strain
C i l B ildi Ph i
-
8/2/2019 Computational Building Physics Using COMSOL
37/48
PAGE 3610-11-2011
Computational Building PhysicsHeat, including Building Scale
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
A li i 5
-
8/2/2019 Computational Building Physics Using COMSOL
38/48
PAGE 3710-11-2011
Application 5Heat, including Building Scale
C t ti l B ildi Ph i
-
8/2/2019 Computational Building Physics Using COMSOL
39/48
PAGE 3810-11-2011
Computational Building PhysicsHeat, including Urban Scale
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
A li ti 6
-
8/2/2019 Computational Building Physics Using COMSOL
40/48
PAGE 3910-11-2011
Application 6Wind & driving rain at Urban Scale
A li ti 7
-
8/2/2019 Computational Building Physics Using COMSOL
41/48
PAGE 4010-11-2011
..
Thanks to: David van Reenen
Application 7Ground energy at Urban Scale
A li ti 7
-
8/2/2019 Computational Building Physics Using COMSOL
42/48
PAGE 4110-11-2011Thanks to: David van Reenen
Application 7Ground energy at Urban Scale
A li ti 7
-
8/2/2019 Computational Building Physics Using COMSOL
43/48
PAGE 4210-11-2011Thanks to: David van Reenen
Application 7Ground energy at Urban Scale
C t ti l B ildi Ph i
-
8/2/2019 Computational Building Physics Using COMSOL
44/48
PAGE 4310-11-2011
Computational Building PhysicsHeat, including EU Scale
Topic
Scale
Heat Moisture Air Stress
~ mm
~ m
~ km
~ Mm
Application 8
-
8/2/2019 Computational Building Physics Using COMSOL
45/48
PAGE 4410-11-2011
Weather Stations
Used as boundaryvalues for the externalclimate
Application 8Incorporate EU Scale
Application 8
-
8/2/2019 Computational Building Physics Using COMSOL
46/48
PAGE 4510-11-2011
Subject buildingconstructions toexternal climates
Map performances
Application 8Incorporate EU Scale
Conclusion
-
8/2/2019 Computational Building Physics Using COMSOL
47/48
PAGE 4610-11-2011
Conclusion
COMSOL is a state-of-art Multiphysics modeling tool for doingresearch in the area of building physics
High performance on
1,2 & 3D capabilities
Grid & solvers techniques
Visualization Flexibility due to PDE abstraction level
Also an excellent tool for education
Our models are available at http://sts.bwk.tue.nl/hamlab/
http://sts.bwk.tue.nl/hamlab/http://sts.bwk.tue.nl/hamlab/ -
8/2/2019 Computational Building Physics Using COMSOL
48/48
Thank you
Questions?
http://sites.google.com/site/josvanschijndelresearch/home/CV2A4v3_ENG.pdf?attredirects=0