F1 Monza Aero Rake Telemetry & Flow Field Correlator

Rake Rig Controls

FP1 Test Scenario Preset

Rake Mounting Station

Airspeed (km/h) 280 km/h

Kiel Probe Grid Pitch 20 mm

Steering / Yaw Angle (°)0.0°

Chassis Aero Rake Array Mount Point

Sensor Jitter / Vortex Burst Sim

2D Total Pressure Wake Slice [Cp_total = (P_t - P_inf) / q_inf]

Plane: Y-Z Rake Cut STATION 1 (FRONT TYRE)

Wake Deficit (Cp -1.0)

Freestream (Cp +1.0)

CFD Correlation

94.2%

Tolerance: ±5.0%

Boundary Layer Height

84.5 mm

99% freestream cut

Vortex Core Coords

Y-382, Z164

Outwash centroid

Cp Min / Max

-0.78 / +0.98

Peak suction core

Kiel Probe Telemetry Array 32 Probes Active

Probe Matrix (Click probe to inspect sensor delta)

Kiel Probe #14 Y: -360mm | Z: 180mm

Total Pressure (Pt): 124.8 kPa

Dynamic Loss (ΔP): -4.6 kPa

Measured Cp: -0.42

CFD Baseline Cp: -0.44

Correlation Delta: +0.02 (Match)

Dominant Flow Feature:

Y250 front tyre squirt outwash vortex stable; minimal wake impingement on sidepod inlet

Monza High-Speed Correlation Context (Ayumu Iwasa Car #1 Red Bull Session)

During Free Practice 1 at the Autodromo Nazionale Monza, Formula 1 teams deploy high-density Kiel probe arrays (aero rakes) to validate computational fluid dynamics (CFD) and wind tunnel correlations under extreme straight-line velocities (reaching 340+ km/h into the Variante del Rettifilo). Kiel probes are chosen because their shrouded tip makes them insensitive to flow yaw angles up to ±40°, critical for capturing turbulent wheel wakes and rotating vortex structures.

Ayumu Iwasa's test programme concentrated on verifying that the low-downforce Monza front wing trim shed the tyre squirt vortex sufficiently outboard to prevent chaotic boundary layer separation along the sidepod undercut and floor edge.