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Mechanical Analysis Blog

Posts tagged with 'FloVENT'

13 Aug, 2010

Mind Your P’s

Posted by Nazita Saye

Nazita Saye No one really knows where the term “mind your P’s and Q’s” came from or what it really means. I always thought it had something to do with being polite and saying thank you. But in a recent article by Erich Buergel, our division General Manager, he talked about the 3 P’s of the business world and why we should mind them in our quest for greater productivity. They are (in no particular order) People, … Read More

Design Engineer, FloEFD, CFD, FloVENT

10 Aug, 2010

How many frogs does a horse have?

Posted by Robin Bornoff

Robin Bornoff The internet is big. It’s not sentient yet, though Robert Swayer has written a compelling story of how it might ‘Wake‘. In fact it’s far from intelligent at all. Banal comments about “how we ever managed without it” will age so quickly that future historians will assume a typo, more intelligence than we currently have and take the phrase to have been “how did we ever manage with it”. It looks like … Read More

data center cooling, data centre, Data Center, FloVENT, HVAC, data centre cooling, Electronics Cooling

19 Jul, 2010

John Parry If you’re involved in CFD in education in any way this will be of interest to you. Since shortly after Flomerics were acquired by Mentor Graphics we’ve been working towards getting out products into Mentor’s Higher Education Program (HEP), and we’ve finally got it done. To my knowledge, the availability of potentially millions of dollars worth of commercial CFD software, plus support and training, … Read More

Mentor HEP, Higher Education, Thermal Design, Concurrent CFD, Education, CFD, Thermal Management, FloVENT, Upfront CFD, Electronics Cooling, FloEFD

10 May, 2010

Robin Bornoff Considering that CFD (Computational Fluid Dynamics) is an advanced mathematical method for predicting fluid flow and heat transfer using a computational software approach I find it paradoxical that it is often as much an art as it is a science. A model by its very definition is a representation of something. A computer model is a virtual representation of a system (e.g. a laptop, a rack mounted server, … Read More

science, CFD, art, Modeling, modelling, FloVENT, Model

19 Apr, 2010

John Parry I’ve been remiss in not posting for a couple of weeks, so I’m trying to get back in the saddle. I’ve been working on other things that have taken up a fair bit of time. One is a web seminar on heatsinks – Heatsink 201 – Even More about Heat Sinks which follows on from Alexandra Francois-Saint-Cyr’s very successful Heat Sink 101 web seminar. Back in March I posted about IBM’s work on liquid cooling … Read More

FloVENT, Google, ASHRAE, Building HVAC, Air Cooling, Green building design, Data Center, Liquid Cooling, Electronics Cooling, CFD, Thermal Management, Cost Saving

7 Apr, 2010

Robin Bornoff Larry Grayson’s famous high camp catchphrase would be well heeded by those wanting to ensure good thermal insulation. You can make it difficult for heat to leave a room, thus maintain a warm room temperature, by constructing walls and floors of sandwiched layers of various materials, restricting heat transfer to conduction and (in cavities) radiation methods only. Open a door however and cold air will … Read More

FloVENT, HVAC, CFD, Thermal Insulation, U-Value

12 Mar, 2010

Robin Bornoff Conduction, the transfer of heat through a solid object. Convection, the transfer of heat in moving air/fluid. Radiation, the transfer of heat from one solid surface to cooler solid surface in ‘line of sight’. The 3 modes of heat transfer are your enemy when it comes to thermal insulation of built environments. Heat is as sly as a fox when it comes to squirming its way out of a space to the cool outside. … Read More

HVAC, Thermal Insulation, FloVENT, U-Value, Watts

2 Mar, 2010

Robin Bornoff Why is it that when you increase a cavity air gap size beyond ~30mm is there no subsequent detrimental affect on the overall U-Value? Why is it that the U-Value of the cavity gap nearly doubles when the air gap reduces to such as size so as to stagnate the air? Questions that come begging after observing the FloVENT simulation results discussed in the previous blog posting. Let’s find out…. When I … Read More

Conduction, Convection, CFD, U-Value, FloVENT, HVAC

17 Feb, 2010

Robin Bornoff 100mm block, 50mm insulation, 50mm cavity air gap then 100mm block make up an external wall that in theory comply with a building regulation overall wall U-Value of 0.3 (W/m^2K). This got me thinking about the 50mm air gap. Why 50mm? What if it was 75mm or 10mm? Stagnant air is a great insulator, a small gap would tend to stagnate the air and might improve, reduce, the overall U-Value. A large gap would … Read More

CFD, FloVENT, Cavity Wall, HVAC, U-Value

5 Feb, 2010

Robin Bornoff As covered in the previous blog, air that sticks to the inside and outside walls offers a resistance to the heat that passes from the room to the inside of the wall and from the outside of the wall to the outside air. These two resistances make up part of the overall U-value, the overall ease by which heat can pass through the entire wall (or window or door etc.). The rest of the U-value is made up … Read More

FloVENT, HVAC, Boundry

2 Feb, 2010

Robin Bornoff It might well be that a single U-value is quoted, in reality though that single value describes the ease by which heat can pass through various stages, from an ‘inside’, passing through a ‘wall/window’ and going to the ‘outside’. The resistance (inverse of the ease, resistance = 1/ease) the heat experiences as it passes from the inside air to the inner solid surface of the wall construction (and from … Read More

FloVENT, HVAC, Boundry Layer, Thermal Insulation, U-Value

27 Jan, 2010

Keeping the caveman warm - HVAC blog

Posted by Robin Bornoff

Robin Bornoff We knapped our first flints about 2,000,000 years ago and started to shelter from the elements in caves and simple huts about 200,000 years ago. As industries go the building industry is probably the oldest, well maybe second oldest. Our ability to both adapt to and manipulate our surroundings has set us apart from the beasts on a path of science, art and technology. Over the coming weeks, months … Read More

Caveman, FloVENT, Building, HVAC

27 Jan, 2010

Robin Bornoff Computational Fluid Dynamics, CFD, is a simulation technology that provides 3D predictions of fluid flow and heat transfer for a modelled system. Be it an electronics enclosure or a building, insights into the often complex air flow patterns can help designers better understand the physical behaviour of their design. Communication of such insights helps others to appreciate the sometimes painful design … Read More

FloVENT, Electronics Cooling, HVAC, FloViz, Free CFD Results Viewer

23 Jan, 2010

Quantitavely Seeding the Flow

Posted by John Wilson

John Wilson I think that we can all agree that one feature of CFD over test is the ability to visualize where the flow is going.  It is quite easy in CFD analysis tools, at least in our tools, to seed the flow any where within the solution and follow particles upstream and/or downstream.  The limitation of this is that it is the results are qualitative.  CFD has the capability, without an extreme amount of extra … Read More

Flow Visualization, CFD, Concentration, Capture Index, FloEFD, FloVENT, Data Center, Electronics Cooling

30 Nov, 2009

Nazita Saye I’ve already admitted my love of cheesy sci-fi movies. The thing that always amazed me was the fact that despite traveling thousands of light-years from Earth, the intrepid explorers were always able to communicate with all sorts of exotic looking aliens whom they’d never encountered before in what else but English!  Fantastic… if only real life was that easy. Sometimes briefing meetings remind me … Read More

Free, FloViz, Communicate, Electronics Cooling, CFD, FloTHERM.PCB, FloVENT, Engineer

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