Currently targeting PhD positions and industrial R&D roles in Sweden and the EU.
T = 673 KP_GAUGE = 100 kPaMa 0.990 · 1.006Bi = 0.003–0.004MESH · 3 LEVELSTRITA-ITM-EX 2026:14120 hpGO · PYTHON · FORTRANKOLLAM → STOCKHOLMRESIDUAL → TOLERANCE
ABHIJITH SIVAPRASADAN
S1 · SYSTEM

Heat.Power.Code.

Thermal-fluid engineer translating high-temperature heat-transfer and compressible-flow problems into CFD/CHT evidence, instrumentation context and physical design decisions.

Thesis at Siemens Energy Finspång · KTH · TRITA-ITM-EX 2026:14
SEE THE CASES → READ THE THESIS →
HEAT → POWER → CODE →
CONTROL VOLUME
CFD/CHT · energy-systems modelling · Python, Go, Fortran
RESIDUAL · STATED PER CASE
→ EVIDENCE
PLAY WITH IT

Drag the heat source

Isotherms spread from wherever you put it. Hover anywhere in the field to read the temperature at the probe.

PROBE · MOVE INTO THE FIELD
T(r) = T∞ + ΔT·e^(−r/λ) · T_SOURCE 673 K · T∞ 293 K · ILLUSTRATIVE
S2
LENSES

One evidence base, four ways to read it

THERMAL AND FLUIDHigh-temperature CFD/CHT, compressible flow and test-rig instrumentation.OPEN LENS → ENERGY SYSTEMSIDA ICE, HOMER Pro, LEAP, dispatch optimisation and forecasting.OPEN LENS → INDUSTRIAL R&DKPI/EnPI methods, metering logic and decarbonisation decision support.OPEN LENS → RESEARCHConjugate heat transfer, surface-condition effects and experimental-numerical methods.OPEN LENS →
S3
CASES

Each case states its boundary first and its residual last

PULSATORN RIG · CFD/CHT REDUCER

Siemens Energy thesis

01 · BOUNDARY
Steady-state thermo-fluid performance of a reducer for a high-temperature dynamic pressure sensor calibration rig.
02 · METHOD
ANSYS Fluent · k-omega SST · conjugate heat transfer · three-level mesh independence
03 · EVIDENCE
Bi = 0.003–0.004 · TRITA-ITM-EX 2026:14
04 · RESIDUAL
Numerical study. Mesh independence is not validation, and no experimental validation of the redesigned reducer is claimed.
OPEN THE CASE LIBRARY → THESIS ON DIVA →
REFINE THE MESH
Three levels, the way the thesis ran them
Pick a level and watch the cells and near-wall layers fill the reducer. The schematic is not the real geometry.
INLET · T = 673 KOUTLETCONTRACTION
95 SCHEMATIC CELLS
COARSE · Δ TO NEXT LEVEL STILL LARGE
RESIDUAL · Mesh independence is not validation. It says the answer stopped changing with the grid, not that the grid matches the rig.
S4
RECORD

Four roles, each with its residual

2025Siemens Energy AB, FinspångMaster's thesis, CFD/CHT of a calibration-rig reducer
2024 TO 2025Alleima ABIndustrial energy performance mapping methodology
2024KTH Process TechnologyResearch engagement on polymer-waste pyrolysis
2021 TO 2023QBurstBackend engineering, starting in Go
OPEN THE FULL RECORD →
S5
EVIDENCE

Documents, listed by identifier

KTH DIVA →TRITA-ITM-EX 2026:14 ORCID →0009-0009-8429-1266 GOOGLE SCHOLAR →Abhijith Sivaprasadan GITHUB →abhijith-sivaprasadan
LIVE · THE YEAR AS A CYCLE

Where we are on the loop today

s → T WINTERSPRINGSUMMERAUTUMN
DAY 300 / 365
82 % ROUND THE CYCLE · 2026
KERALA MONSOON · NEXT IN 217 DAYS
The loop closes every 31 December. What changed in between is the net work.
S6
OPEN BOUNDARY
Where the work can be checked or continued.
GITHUB → ORCID → CV → WORK RECORD →