Over the last 50 years, the automotive industry has been going through huge shifts in electrification (Figure 1). And, of course, we are seeing the electric motor starting to replace the mechanical engine with the advent of Electric & Hybrid vehicles. Not surprisingly, the demand for ever higher density in a confined electronics leads to a greater and greater need to … [Read more...]
Series of Papers Illustrate Use of Thermal Simulation Technology in Design
NMB Technologies Corporation introduces a new series of informational engineering papers on how thermal simulation can aid, not only in the design of a system, but in anticipating the behavior of cooling components. In looking at the selection process of cooling components, in particular axial cooling fans, the first step for the engineer is to estimate the required airflow … [Read more...]
Thermal/EMI Combination Shield Design Case Study
Laird Technologies, Inc. recently released its thermal/EMI combination shield design case study, which discusses in detail the process of how thermal simulation software was utilized in the design of a thermal/EMI combination shield. Instead of building a physical prototype, the initial concept design was simulated, allowing for an accurate prediction of the thermal performance … [Read more...]
A Simple Thermal Resistance Model – Isoflux Versus Isothermal
In most cases today thermal design for electronic products is performed with the aid of sophisticated computational fluid dynamics and heat transfer codes. Nonetheless, there may still be occasions when a thermal designer needs a quick estimate of the external thermal resistance of a package or heat sink that does not warrant the use of powerful computer codes. In such cases an … [Read more...]
CFD Simulations in Electronic Systems: A Lot of Pitfalls and a Few Remedies
Introduction In the past 15 years, we have observed a significant increase in the use of Computational Fluid Dynamics (CFD) codes to calculate the thermal behavior of electronic systems. The benefits are undisputed when it comes to performing parametric studies in early design phases. However, when the objective is accuracy, the discussion about what we can expect in practice … [Read more...]
