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Add additional ASM constants, add other sensor handling, fix bug in kla model

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p.vanderwilt
2025-11-07 11:59:24 +01:00
parent ffb4080f14
commit a106276ca6
3 changed files with 19 additions and 5 deletions
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2
src/reaction_modules/asm3_class Koch.js
View File

@@ -2,6 +2,8 @@ const math = require('mathjs');
const ASM_CONSTANTS = { const ASM_CONSTANTS = {
S_O_INDEX: 0, S_O_INDEX: 0,
S_NH_INDEX: 3,
S_NO_INDEX: 5,
NUM_SPECIES: 13 NUM_SPECIES: 13
}; };

2
src/reaction_modules/asm3_class.js
View File

@@ -2,6 +2,8 @@ const math = require('mathjs');
const ASM_CONSTANTS = { const ASM_CONSTANTS = {
S_O_INDEX: 0, S_O_INDEX: 0,
S_NH_INDEX: 3,
S_NO_INDEX: 5,
NUM_SPECIES: 13 NUM_SPECIES: 13
}; };

16
src/specificClass.js
View File

@@ -327,7 +327,7 @@ class Reactor_PFR extends Reactor {
} }
} else { } else {
for (let i = BC_PADDING+1; i < BC_PADDING+this.n_x - 1; i++) { for (let i = BC_PADDING+1; i < BC_PADDING+this.n_x - 1; i++) {
transfer[i][ASM_CONSTANTS.S_O_INDEX] = this._calcOTR(this.extendedState[i][ASM_CONSTANTS.S_O_INDEX], this.temperature) * this.n_x/(this.n_x-2); transfer[i][ASM_CONSTANTS.S_O_INDEX] = this._calcOTR(this.extendedState[i][ASM_CONSTANTS.S_O_INDEX], this.temperature);
} }
} }
@@ -349,10 +349,19 @@ class Reactor_PFR extends Reactor {
} }
_updateMeasurement(measurementType, value, position, context) { _updateMeasurement(measurementType, value, position, context) {
const grid_pos = Math.round(context.distance / this.config.length * this.n_x);
// naive approach for reconciling measurements and simulation
// could benefit from Kalman filter?
switch(measurementType) { switch(measurementType) {
case "quantity (oxygen)": case "quantity (oxygen)":
const grid_pos = Math.round(context.distance / this.config.length * this.n_x); this.state[grid_pos][ASM_CONSTANTS.S_O_INDEX] = value;
this.state[grid_pos][0] = value; // naive approach for reconciling measurements and simulation break;
case "quantity (ammonium)":
this.state[grid_pos][ASM_CONSTANTS.S_NH_INDEX] = value;
break;
case "quantity (nox)":
this.state[grid_pos][ASM_CONSTANTS.S_NO_INDEX] = value;
break; break;
default: default:
super._updateMeasurement(measurementType, value, position, context); super._updateMeasurement(measurementType, value, position, context);
@@ -375,6 +384,7 @@ class Reactor_PFR extends Reactor {
const BC_C_in = math.multiply(1 / math.sum(this.Fs), [this.Fs], this.Cs_in)[0]; const BC_C_in = math.multiply(1 / math.sum(this.Fs), [this.Fs], this.Cs_in)[0];
const BC_dispersion_term = this.D*this.A/(math.sum(this.Fs)*this.d_x); const BC_dispersion_term = this.D*this.A/(math.sum(this.Fs)*this.d_x);
this.extendedState[BC_PADDING] = math.multiply(1/(1+BC_dispersion_term), math.add(BC_C_in, math.multiply(BC_dispersion_term, this.extendedState[BC_PADDING+1]))); this.extendedState[BC_PADDING] = math.multiply(1/(1+BC_dispersion_term), math.add(BC_C_in, math.multiply(BC_dispersion_term, this.extendedState[BC_PADDING+1])));
// Numerical boundary condition
this.extendedState[BC_PADDING-1] = math.add(math.multiply(2, this.extendedState[BC_PADDING]), math.multiply(-2, this.extendedState[BC_PADDING+2]), this.extendedState[BC_PADDING+3]); this.extendedState[BC_PADDING-1] = math.add(math.multiply(2, this.extendedState[BC_PADDING]), math.multiply(-2, this.extendedState[BC_PADDING+2]), this.extendedState[BC_PADDING+3]);
} else { } else {
// Neumann BC (no flux) // Neumann BC (no flux)