promote_ducted_rotor_type(ducted_rotor, operating_point)

Convenience function for promoting types based on any potential elements of the ducted_rotor object dependent on optimization design variables.

Arguments

• ducted_rotor::DuctedRotor : the ducted_rotor input
• operating_point::OperatingPoint : the operating_point input

Returns

• TP::Type : the promoted type

isscalar(x::T) where {T} = isscalar(T)
isscalar(::Type{T}) where {T} = BroadcastStyle(T) isa Broadcast.DefaultArrayStyle{0}

Determines if the input is a scalar. Note that Base.BroadcastStyle is imported.

dot(A, B) = sum(a * b for (a, b) in zip(A, B))

A faster dot product.

norm(A) = sqrt(mapreduce(x -> x^2, +, A))

A faster 2-norm.

cross2mag(A, B) = A[1] * B[2] - A[2] * B[1]

2D "cross product" magnitude

linear_transform(range1, range2, values)

Linear transfrom of values from range (source_range[1], source_range[end]) to (target_range[1], target_range[end])

Arguments

• source_range::Vector{Float} : range values come from (can also be a Tuple)
• target_range::Vector{Float} : range onto which we are transforming (can also be a Tuple)
• source_values::Array{Float} : array of source values to transform

Returns

• target_values::Array{Float} : array of transformed sourcevalues onto target range

extract_primals!(Avalue, A::AbstractMatrix{T}) where {T}

Extracts primals of A and places them in Avalue.

lfs(shape)

Determines length from shape (output of size function).

reset_containers!(containers; exception_keys=[])

Resets all fields (not incluing any contained in exception keys) of containers–-which must be arrays, structs of arrays, or tuples of arrays–-to zeros.

cache_dims!(total_length, l, s)

A function that returns a named tuple containing an index range and shape and increases total_length by l.

This function is used heavily in the cache allocation functions for setting up the dimension maps used to access the vectorized caches.

Arguments

• total_length::Vector{Int} : single element vector containing the current total length of the eventual cache vector. Modified in place.
• l::Int : total length of the object in question
• s::Int : size of the object in question

Returns

• dims::NamedTuple : A named tuple containing index and shape fields

write_data(outs, filename; checkoutfileexists=false)

Writes NamedTuples, specifically for writing out the output of the post_procces() function.

Arguments:

• outs::NamedTuple : Named tuple to write to file.
• filename::String : file name (including full desired path and file type) for file to write

Keyword Arguments:

• output_tuple_name::String : desired variable name of written NamedTuple
• checkoutfileexists::Bool=false : boolean for whether to check if the outfile already exists and whether or not to overwrite it.