The VF23 is a great step forward, but development must follow

The VF23 offers huge potential, so further improvements must be explored.

It is so amazing that just under a fortnight after Haas displayed its new 2023 Formula One livery , the actual car has now come out of the shadows. It is a detailed development from last year's design, with some interesting and eye-catching changes. 

One important change is that the leading edge of the side pods is a little further on the rear. We are very certain that the top of the radiator inlet is, but the bottom of the inlet duct and the leading edge of the floor are not moved back by nearly as much. All the three leading edges are staggered to separate the flow from one affecting the flow from one affecting the flow on another.

Let's take a look at the developments that have been made.

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Firstly, attention should be paid to the orange highlight. Beginning with the upper side of the Side pod, Haas increased the Ferrari style bath tub top surface to decrease the amount of air flow that would spill over this particular edge into the coke bottle arena or area and reduce its effectiveness and impact in helping to seal the floor sides.

The purple arrows have been upgraded too, and they show the flow into the in let of the radiator, high up along the sides of the chassis or underneath the body of the car.

Another area worth checking out is the yellow eclipse. The ellipse spotlights the stagger in the inlet of the radiator. The main reason for this is to reduce the risk of spillage in the airflow in the radiator, when the radiator chokes and cannot handle as much air flow that is presented to it. The spillage needs to be minimized because it could be pulled into the front corner of the Side pod, if this happens it would decrease the effect of this undercut on the complete flow structure surrounding the sides of the car. 

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Yellow arrows show where the flow spillage will be trained and prepared on, which is, on analysis, a bit late in the Side pod coke bottle area and well away from the front corner undercut. Red arrows have also been improved. These show the air flow that comes through the front suspension, it goes under the lower edge of the radiator inlet and is then turned abruptly by the aggressive undercut on the front corner of the Side pod.

Furthermore, blue arrows show the flow that is being pulled out from underneath the front corner of the car. This will then join hands with the yellow flow and the red flow lines, which will then be pulled into the coke bottle by the low pressure just behind the rear type. It is safe to say that If all this works as planned out, it will generate a reasonable drag reduction as it fills up the space behind the rear type. This flow will also help the performance of the diffuser. 


 

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Moreover, green arrows have also been developed. When the rear tyre is rotating onto the track surface, it forces airflow around the outside and inside. It has to be in that way or else the tire will be rotating on a cushion of air. This is commonly called a tyre squirt. These small inlets on the outer edges of the floor are positioned such that this tire squirt pulls air flow through them, meaning that for the width of these inlets you have very high speed airflow travelling along the outer under the surface of the floor. 

In conclusion, we will see all these developments physically on the red carpet next week.

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