19: Fluid Flow Computations
| Command | Purpose | 
|---|---|
| avl_link | Link to the AVL Indicom combustion analysis system. | 
| blend_scales | Manage fuel weighing operations using load cells, including controlling fill valve operations and computing fuel rates based on sampling processes. | 
| change_res | Change the formatted resolution of a variable or a list of variables. | 
| cf_scales | Provide control functions for a load cell fuel system that also uses a continuous flow meter and flow control valve. | 
| cfv_1065 | Compute air mass flow on a continuous basis per the 1065 standard using inputs from a specification file. | 
| critical_flow | Compute air mass flow on a continuous basis. | 
| dummy_fr | Simulate fuel reading events by processing an event name to mimic the behavior of a fuel reading device task for testing purposes. | 
| emcon_comm | Communicate with an AVL EMCON6 system to manage dyno control, handling data exchange via sockets, parsing configuration files, and processing input and output variables. | 
| fa_total | Perform continuous fuel and air flow totalizing computations for engine performance, including summing rates and calculating metrics like air-fuel ratio. | 
| fr_log | Set a fuel reading log file name. | 
| gas_blend | Compute the ratios of three input gas streams to achieve a specified heating value and methane number for the resulting mixture. | 
| gas_distribution | Set the values of CyFlex array variables that contain information about emission gases and perform actions based on cylinder states. | 
| gas_mix | Compute the gas composition of a stream produced by mixing two or more gas streams, using the composition and mass flow of input streams to determine the mixed stream’s composition and mass flow. | 
| gasfl | Compute gaseous mass flow rates for up to 8 meters based on input specifications. | 
| generic_scales | Perform control functions for a directly controlled load cell fuel system. These functions include fill valve operation, and timing of a fuel reading. The outputs include the consumption rate, hp-specific consumption, and error statistics of the linear regression performed on the load cell value during the reading. | 
| get_comp | Display or return the value of a computed expression in the specified units. | 
| lc_scales | Perform control functions for a directly controlled load cell fuel system. These functions include fill valve operation, and timing of a fuel reading. | 
| lfe | Compute gas mass flow rates continuously for a Laminar Flow Element based on specified inputs and configuration. | 
| oil_scales | Measure the oil consumption rate using a load cell-based system by managing filling operations and computing rates based on measurements. | 
| scales | Control the fuel scale system by managing fill valve operations, weight selections, and timing for fuel readings based on transition events. | 
| subsonic | Compute continuous gas flow rates for subsonic venturi meters based on inputs from a specification file, performing real-time calculations and handling events for updates. | 
| take_auto | Request a single fuel reading with automatic weight selection. | 
| take_autos | Request continuous fuel readings and set the fuel weight selection to automatic. | 
| take_dum_fr | Take a dummy fuel reading. | 
| take_fr | Request a single fuel reading and optionally specify a fuel weight. | 
| take_frs | Request continuous fuel readings and optionally specify a fuel weight. | 
| urea_flow | Collect and process urea flow data, including monitoring total flow and handling fault events in a continuous background service. | 
| Vcone_flow | Compute the air mass flow on from a V-cone meter. | 
| venture | Compute Air Mass Flow for a nozzle. | 
| volef | Compute volumetric efficiency for a single engine manifold on a continuous basis. | 
| volef2 | Compute volumetric efficiency for an engine manifold on a continuous basis using variables specified in a configuration file, focusing on engine displacement as a variable. |