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Fire dynamics...? **FIRE** **DYNAMICS** by Detrimental Effects. The greatest effect of subjecting this structure to this heat source over a long period is creep. Creep strain results from the movement of dislocations in the slip plane. The composition of steel contains numerous defects such as solute atoms. Creep increases as steel nears its melting point (Totten, 2007). Creep is a ‘time-dependent’ deformation which means that it does not occur suddenly. Creep occurs gradually as a result of long term stress due to high temperatures. At 250-300 degrees room temperature, creep has little effect on the performance on the steel structure since the amount and distribution of the effects of steel remain uniform hence any deformations...

12 Pages(3000 words)Dissertation

Computational fluid dynamics in filters...CFD FOR FILTERS COMPUTATIONAL **FLUID** **DYNAMICS** FOR FILTERS CFD FOR FILTERS 2
COMPUTATIONAL **FLUID** **DYNAMICS** (CFD) IN FILTERS
Computational- Involving rigorous mathematics and intensive computational algorithms.
**Fluid**- Anything that has a tendency to flow, i.e. all liquids and gases.
**Dynamics**- Scientific discipline concerned with the study of particles in motion.
Filters- A **physical** interface that removes particles/pollutants from polluted **fluid** flows.
OPERATIONAL DESIGN OF THE SYSTEM [1]
Essentially, a CFD simulation protocol is so computationally intensive and involves such esoteric mathematical skills...

13 Pages(3250 words)Essay

Built environment assignment (Physics equations)...exit at a speed of about 1.1402 m/s.
7. How different is the result for the previous **question**, if air movement changes its direction on opposite (U = - 0.3 m/s).
Find for:
There is no difference for the computed final velocity, for U = - 0.3 m/s or U = 0.3 m/s. The direction of evacuation, however, may vary from +20 degrees to -20 degrees towards the **fire** exit with respect to the corridor AB.
8. Compare the chemical reaction rates at three temperatures - 300, 600 and 900 K. The activation energy is 120 kJ/mole. Make your conclusion how temperature affects chemical reaction rate.
"The only way to explain the relationship between temperature and the rate of a reaction is to assume that the rate...

11 Pages(2750 words)Assignment

Computational Fluid Dynamics...COMPUTATIONAL **FLUID** **DYNAMICS** FOR EXTERNAL AERODYNAMICS OF BUILDINGS INTRODUCTION In this fast moving world the need to control and predict the movement of **fluids** is a common problem. Scientists have worked hard on this are an so far the study of this area is called **fluid** **dynamics** and the systems that are studied range from weather patterns, through aircraft aerodynamics to the way blood circulates. Since IT has a massive role in the current globalization process engineers have devised systems called as the CFD or Computational **fluid** **dynamics**. Computational **Fluid** **Dynamics** (CFD) uses current IT to solve these problems using the fundamental of **physics**. Due to the advancements in almost every field CFD and its application is a rapidly... ...

8 Pages(2000 words)Essay

Theoretical physics questions answered...**Questions** about the W-W proof itself: in eq 65 you get that the matrix element is proportional to the 4-momentum due to L-I and then conclude(by going to momentum space) that this implies that p.p=0 so that the
4-momentum associated with the particle is lightlike. Am I correct that this does imply
that any single particle state in such a theory which has non-vanishing conserved charge
must have lightlike momentum (The **question** may be put in order plz.)
This is correct but mind here that the light-like condition was already at hand and here p2 = 0 validates current conservation.
What concerns me about this is that it seems to me that without having used the masslessness condition anywhere we arrived...

15 Pages(3750 words)Essay

Computional Fluid Dynamics for Filters..., are also specified. Secondly, the governing **equations** of the **fluid** flow are selected and these determine the boundary conditions of the flow. Since the field of continuum **fluid** **dynamics** is governed by conservation of mass, momentum and energy and the partial differential **equations** resulting from these laws are Navier-Stokes **equations**, these resultant Navier-Stokes **equations** are selected. They are further simplified to Euler **equations** and thin layer Navier-Stokes **equations**. These further determine the boundary conditions. Different boundary types or **physical** models are...

30 Pages(7500 words)Essay

Solving Equations...In this project, Bluman (2004, p. 331) challenged students to examine an **equation**, x2 – x + 41, which purportedly yields prime numbers. Students choose numbers to substitute to x in the formula and observe if prime numbers occur. An added challenge was to venture into finding a number, which when substituted in the given **equation**, will result in a composite number.
It is presupposed that a prime number is one whose factors are itself and 1, is common knowledge. On the other hand, a composite number may not be that much of a common knowledge. A definition is thus, provided: a composite number is “any whole number greater than one that is not a prime number … [it] always has at least one divisor other...

4 Pages(1000 words)Assignment

Computational Fluid Dynamics...of motion to the case of unsteady flow of a compressible liquid in an elastic pipe leads ultimately to the momentum **equation** in pipes. The following **equation** expresses the law of conservation of momentum in 1D-dimension.
Transient + Convection + Pressure gradient + Losses source = 0
where is the diameter of the circular pipe and is the friction factor of the pipe. The value of is a function of the Reynolds number and the roughness of the pipe and is given below. Also is the pressure of the liquid in the pipe, is the liquid velocity in the x-direction coinciding with the pipe length, is the **fluid** density and is the time. We notice that the...

5 Pages(1250 words)Outline

Equations...this into one of the given **equations**:
5(3) + 2y = 31 gives 15 + 2y = 31 then subtracting 15 from each side gives 2y = 16 and dividing by 2 (both sides) makes y = 8
Second **Question**
a. Choose a room in your house. Measure the length, the width, and the height. Make sure you use feet and inches. Convert the measurements to all inches for step 2, and then convert back to square feet for step 3.
Length = 37’2” , Width = 25’4’’ , Height = 31’8”
b. Record your dimensions and, using the appropriate formula, find the surface area of the room.
Conversion: 1 foot = 12 inches
L = (37*12) in. + 2 in. = 446 inches
W = (25*12) in. + 4 in. = 304...

1 Pages(250 words)Assignment

Mesh strategy-Refinement mesh (CFD: computational fluid dynamics) [1000 words]...1 Mesh Strategy---Refinement mesh by volume control mesh The goal is to come up with a refined mesh in a volume of thecomputational domain. This could come in handy in situations where the mesh cannot be controlled by specifying surface mesh parameters. The mesh strategy is used to refine some zones of a mesh diagram. One of the meshing strategies that could be used to achieve this objective could be a volume control mesh. Volumetric mesh control is used over a simple volumetric shape.
The volume control mesh makes it possible to catch most of the details of the **fluid** flow without increasing the time required to perform the simulation test. The design of the mesh has to balance between the level of detail of the mesh...

4 Pages(1000 words)Lab Report