Hydraulics/Fluid Mechanics a.y. 2020-2021
SIMILITUDE AND MODELS
Prof. Stefania Espa
DICEA-SAPIENZA UNIVERSITY OF ROME
CIVIL AND INDUSTRIAL ENGINEERING
BATCHELOR IN SUSTAINABLE BUILDING ENGINEERING
RIETI
All images uploaded are for educational purposes
, SIMILITUDE AND MODELS: Introduction
There are many applied problems of interest in the field of hydraulics/fluid
mechanics that cannot be solved using the differential and integral equations
only. It is often necessary to use the experimental method to establish
relationships between the variables of interest.
Experimental studies are usually quite expensive, it is necessary to keep the
required experimentation to a minimum. This is done using a technique called
dimensional analysis, which is based on the notion of dimensional
homogeneity—that all terms in an equation must have the same dimensions.
Often in experimental work we are required to perform experiments on
objects that are quite large. Such flows are usually studied in laboratories
using models that are based on device smaller than the actual ones.
This substantially reduces the costs when compared with full-scale studies and
allows for the study of various configurations or flow conditions : ADVANTAGE
SIMILITUDE AND MODELS
Prof. Stefania Espa
DICEA-SAPIENZA UNIVERSITY OF ROME
CIVIL AND INDUSTRIAL ENGINEERING
BATCHELOR IN SUSTAINABLE BUILDING ENGINEERING
RIETI
All images uploaded are for educational purposes
, SIMILITUDE AND MODELS: Introduction
There are many applied problems of interest in the field of hydraulics/fluid
mechanics that cannot be solved using the differential and integral equations
only. It is often necessary to use the experimental method to establish
relationships between the variables of interest.
Experimental studies are usually quite expensive, it is necessary to keep the
required experimentation to a minimum. This is done using a technique called
dimensional analysis, which is based on the notion of dimensional
homogeneity—that all terms in an equation must have the same dimensions.
Often in experimental work we are required to perform experiments on
objects that are quite large. Such flows are usually studied in laboratories
using models that are based on device smaller than the actual ones.
This substantially reduces the costs when compared with full-scale studies and
allows for the study of various configurations or flow conditions : ADVANTAGE
