PC specifications for best CFD simulation experience

First and foremost, I will list my PC specifications which I personally use to run ANSYS Fluent for CFD Runs. It is very important to note that my PC is fairly basic. I will give you an idea of what’s the capabilities of a PC like mine and then I’ll ramp up from there.

For instance, the PC I use is called: HP – Pavilion 550-276na Desktop PC – Silver. Below is a picture of it:

PC specifications: HP - Pavilion 550-276na Desktop PC - Silver
PC specifications: HP – Pavilion 550-276na Desktop PC – Silver

Operating system: Windows 10 (64-bit)

Processor: Intel® Core™ i7-6700 Processor


3.4 GHz / 4.0 GHz with TurboBoost

8 MB cache

Memory (RAM): 16 Gb ( You can’t add additional RAM)

Graphics Card:   AMD Radeon R5-330 (2 GB DDR3)  – Very basic

As a result of the above, you notice that the PC specifications I have are pretty basic. My PC can deal with CFD models with 1 Million and a half elements (Not bad). Consequently, It would take a long time to simulate a transient scenario with high mesh resolution but patience is everything!

I personally believe, if you are a CFD learner and trying to get your head around this field then the PC specifications above should be enough for a start.

I would personally purchase a more advanced PC  if I first had the money and second had a business in this field. In the mean time, I am only using my PC for an Academic version of ANSYS which is already limited in the number of elements you can use.

What do I recommend for a medium size business?

(Budget at the bottom)

Well I tried to virtually build a PC that could be easily used in a consultancy business which deals with small to medium industries:

As a matter of fact, I am an Intel based system biased person (sorry AMD):

Operating system: Windows 10 (64-bit)

Processor: Intel® Core™i7 Ten Core Processor Extreme i7-6950X (3.0GHz) 25MB Cache

Mother Board: ASUS® X99-E WS: SOCKET 2011-V3, DDR4, USB 3.0, SATA 6 GB/s

Memory (RAM): 128GB Corsair VENGEANCE DDR4 2133MHz (8 x 16GB)

Graphics Card:   12GB NVIDIA TITAN Xp – DVI, HDMI, DP

Hard Disk: 6TB SATA-III 3.5″ HDD, 6GB/s, 7200RPM, 128MB CACHE


Processor Cooling: Corsair H100i V2 Hydro Cooler w/ PCS Liquid Series Ultra Quiet Fans

The above PC specifications constitute a decent unit for a small to medium size business who needs to operate 5 to 8 Million mesh elements comfortably.

Finally, you are all wondering about the budget required for the above PC, all the above comes at less than £5,000.00 or $6,476.00


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